{"id":2668,"date":"2023-11-14T21:28:01","date_gmt":"2023-11-14T20:28:01","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2668"},"modified":"2023-11-14T21:28:01","modified_gmt":"2023-11-14T20:28:01","slug":"test-program","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/14\/test-program\/","title":{"rendered":"Test program"},"content":{"rendered":"

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
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14\u2014100 Test program<\/strong><\/div>\n<\/div>\n<\/td>\n
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Model year 1977\/78\/79<\/div>\n<\/div>\n<\/td>\n
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A. Federal version, tourist vehicles Federal version<\/strong><\/div>\n<\/div>\n<\/td>\n
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For complaints such as:<\/div>\n<\/div>\n<\/td>\n
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Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration, check emission control system for function.<\/div>\n<\/div>\n<\/td>\n
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Test conditions:<\/div>\n<\/div>\n<\/td>\n
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Engine at operating temperature, run engine at idle speed.<\/div>\n<\/div>\n<\/td>\n
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Test the following:<\/div>\n<\/div>\n<\/td>\n
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EGR, air injection and fuel evaporation control system.<\/div>\n<\/div>\n<\/td>\n
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Function diagram model year 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Mixture controller<\/div>\n
2\u00a0 \u00a0Ignition distributor<\/div>\n
9\u00a0 \u00a0Switch-over valve ignition<\/div>\n
31\u00a0 \u00a0 EGR valve_<\/div>\n
35\u00a0 \u00a0Check valve<\/div>\n<\/div>\n<\/td>\n
\n
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39\u00a0 \u00a0Charcoal canister<\/div>\n
40\u00a0 \u00a0Air pump<\/div>\n
41\u00a0 \u00a0 Diverter valve (air switch-over valve)<\/div>\n
42\u00a0 \u00a0Check valve 45 Air filter<\/div>\n<\/div>\n<\/td>\n
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60\u00a0 \u00a0Thermovalve 40 \u00b0C<\/div>\n
61\u00a0 \u00a0 Thermovalve 17 \u00b0C<\/div>\n
74\u00a0 \u00a0Pressure relief valve<\/div>\n
75\u00a0 \u00a0Pressure transducer 78\u00a0 \u00a0Air filter for silencing<\/div>\n<\/div>\n<\/td>\n
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a Air injection line<\/div>\n
b Connection tank vent<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/1 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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Function diagram model year 1978\/79<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Mixture controller<\/div>\n
2\u00a0 \u00a0Ignition distributor<\/div>\n
5 Regenerating valve (purge<\/div>\n
valve)<\/div>\n
9 Switch-over valve ignition 31 EGR valve<\/div>\n<\/div>\n<\/td>\n
\n
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35 Check valve<\/div>\n
39\u00a0 \u00a0Charcoal canister<\/div>\n
40\u00a0 \u00a0Air pump<\/div>\n
41\u00a0 \u00a0 Diverter valve (air switch-over valve)<\/div>\n
42\u00a0 \u00a0Check valve<\/div>\n<\/div>\n<\/td>\n
\n
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45\u00a0 \u00a0Air filter<\/div>\n
60\u00a0 \u00a0Thermovalve 40 \u00b0C<\/div>\n
61\u00a0 \u00a0 Thermovalve 17 \u00b0C<\/div>\n
74\u00a0 \u00a0Pressure relief valve<\/div>\n
75\u00a0 \u00a0Pressure transducer<\/div>\n<\/div>\n<\/td>\n
\n
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78\u00a0 \u00a0Air filter for silencing<\/div>\n
80\u00a0 \u00a0Auxiliary air valve<\/div>\n
81\u00a0 \u00a0 Contour hose<\/div>\n
a\u00a0 \u00a0 \u00a0Air injection line<\/div>\n
b\u00a0 \u00a0 \u00a0Connection tank vent<\/div>\n<\/div>\n<\/td>\n
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Testing EGR<\/strong><\/div>\n<\/div>\n<\/td>\n
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Pull brown vacuum line<\/div>\n<\/div>\n<\/td>\n
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from EGR<\/div>\n<\/div>\n<\/td>\n
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valve (31)<\/div>\n<\/div>\n<\/td>\n
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and slowly increase idle<\/div>\n<\/div>\n<\/td>\n
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speed.<\/div>\n<\/div>\n<\/td>\n
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Engine runs irregularly<\/div>\n<\/div>\n<\/td>\n
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Engine<\/div>\n<\/div>\n<\/td>\n
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runs without<\/div>\n<\/div>\n<\/td>\n
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starting at approx.<\/div>\n<\/div>\n<\/td>\n
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change.<\/div>\n<\/div>\n<\/td>\n
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1200\/min or stops.<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n\n
\"m110<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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14.2-100\/2 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
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Testing vacuum lines<\/strong><\/div>\n
Test layout of vacuum lines on pressure transducer and intake pipe.<\/div>\n
Note that connections on pressure trans\u00adducer are identified with color rings. The attached vacuum lines should have the same color.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Connection intake pipe vacuum (blue)<\/div>\n
2\u00a0 \u00a0 Connection vent line (white)<\/div>\n
3\u00a0 \u00a0Connection exhaust gas backpressure line (orange)<\/div>\n
4\u00a0 \u00a0 Connection vacuum line to EGR valve (brown)<\/div>\n<\/div>\n<\/td>\n
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On black thermovalve 40 \u00b0C (60) the red vacuum line should be plugged to diago\u00adnal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum connections.<\/div>\n<\/div>\n<\/td>\n
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Testing thermovalve 40 \u00b0C (60)<\/strong><\/div>\n
The thermovalve is identified by a black plastic section and the designation „50 AA 4” punched into metal section. Pull-off vacuum hose at straight connec\u00adtion, let engine run and accelerate.<\/div>\n
Vacuum should be felt at free connection.<\/div>\n
During removal and installation of thermo\u00advalve make sure that the small connecting pipes are not damaged.<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/3 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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1O7-123M<\/strong><\/div>\n<\/div>\n<\/td>\n
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14.2-100\/4 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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Testing vacuum <\/strong>lines<\/div>\n
The blue vacuum line from intake pipe should be connected to blue line and diagonal connection of thermovalve (61) by means of a distributor and check valve. The check valve should be plugged on with connection (A) in direction of intake pipe.<\/div>\n
The blue\/purple vacuum line of straight connection of thermovalve (61) leads to diverter valve (41).<\/div>\n<\/div>\n<\/td>\n
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Testing vacuum<\/div>\n
Pull vacuum line from diagonal connec\u00adtion of thermovalve (61), connect vacuum gauge or keep closed with finger. Vacuum should be available at idle speed. If not, test vacuum lines for leaks and blow out vacuum draw-off line (tapping line) at intake pipe.<\/div>\n
If vacuum is available, test thermovalve (61) and renew, if required.<\/div>\n<\/div>\n<\/td>\n
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Testing thermovalve 17 \u00b0C (61)<\/strong><\/div>\n
The thermovalve is identified by a blue plastic section and the designation „50 AB 5” punched into metal section.<\/div>\n
Pull-off blue\/purple vacuum line, run engine.<\/div>\n
Vacuum should be available at free connection.<\/div>\n
If thermovalve is in order, renew diverter valve (41).<\/div>\n<\/div>\n<\/td>\n
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107-10895<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/5 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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End of test<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/6 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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B. California version<\/strong><\/div>\n<\/div>\n<\/td>\n
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For complaints such as: Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or<\/div>\n
splashing during acceleration, check emission control system for function.<\/div>\n<\/div>\n<\/td>\n
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\n
<\/div>\n<\/div>\n

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Test conditions:<\/div>\n<\/div>\n<\/td>\n
\n
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Engine at operating temperature, run engine at idle speed.<\/div>\n<\/div>\n<\/td>\n
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<\/div>\n<\/div>\n

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Test the following:<\/div>\n<\/div>\n<\/td>\n
\n
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EGR, air injection and fuel evaporation control system.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
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\n
<\/div>\n<\/div>\n

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Function diagram model year 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Mixture controller<\/div>\n
2\u00a0 \u00a0Ignition distributor<\/div>\n
9\u00a0 \u00a0Switch-over valve ignition<\/div>\n
31\u00a0 \u00a0 EGR valve<\/div>\n
39\u00a0 \u00a0Charcoal canister<\/div>\n<\/div>\n<\/td>\n
\n
\n
40\u00a0 \u00a0Air pump<\/div>\n
41\u00a0 \u00a0 Air switch-over valve<\/div>\n
42\u00a0 \u00a0Check valve<\/div>\n
60\u00a0 \u00a0Thermovalve 40 \u00b0C<\/div>\n<\/div>\n<\/td>\n
\n
\n
61\u00a0 \u00a0 Thermovalve 1 7 \u00b0C<\/div>\n
73\u00a0 \u00a0Thermovalve 50 \u00b0C<\/div>\n
74\u00a0 \u00a0Pressure relief valve<\/div>\n
75\u00a0 \u00a0Pressure transducer<\/div>\n<\/div>\n<\/td>\n
\n
\n
78 Air filter for silencing<\/div>\n
a Air injection line cylinder head<\/div>\n
b Air injection line be\u00adtween catalysts<\/div>\n
c Connection tank vent<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/7 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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Function diagram model year 1978\/79<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Mixture controller<\/div>\n
2\u00a0 \u00a0Ignition distributor 5\u00a0 \u00a0Regenerating valve<\/div>\n
9\u00a0 \u00a0Switch-over valve ignition<\/div>\n
31\u00a0 \u00a0 EGR valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
39\u00a0 \u00a0Charcoal canister<\/div>\n
40\u00a0 \u00a0Air pump<\/div>\n
41\u00a0 \u00a0 Air switch-over valve<\/div>\n
42\u00a0 \u00a0Check valve<\/div>\n
60\u00a0 \u00a0Thermovalve 40 \u00b0C<\/div>\n<\/div>\n<\/td>\n
\n
\n
61\u00a0 \u00a0 Thermovalve 17 \u00b0C<\/div>\n
73\u00a0 \u00a0Thermovalve 50 \u00b0C<\/div>\n
74\u00a0 \u00a0Pressure relief valve<\/div>\n
75\u00a0 \u00a0Pressure transducer 78\u00a0 \u00a0Air filter for silencing<\/div>\n<\/div>\n<\/td>\n
\n
\n
80\u00a0 \u00a0Auxiliary air valve<\/div>\n
81\u00a0 \u00a0 Contour hose<\/div>\n
a Air injection line cylinder head<\/div>\n
b Air injection line be\u00adtween catalysts<\/div>\n
c Connection tank vent<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing EGR<\/strong><\/div>\n
Pull-off brown vacuum line on EGR valve (31) and slowly increase idle speed.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Engine runs irregularly starting at approx. 1200\/min or comes to a stop.<\/div>\n<\/div>\n<\/td>\n
\n
\n
Engine operation continues without stop.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/8 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing vacuum lines<\/div>\n
Test layout of vacuum lines on transducer and intake pipe.<\/div>\n
Note that connections on pressure trans\u00adducer are identified with color rings. The plugged-on vacuum lines should have the same color.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\u00a0 \u00a0 Connection intake pipe vacuum (blue)<\/div>\n
2\u00a0 \u00a0Connection vent line (white)<\/div>\n
3\u00a0 \u00a0Connection exhaust gas backpressure line (orange)<\/div>\n
4\u00a0 \u00a0Connection vacuum line to EGR valve (brown)<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
On black thermovalve 40 \u00b0C (60) the red vacuum line should be connected to diagonal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum draw-off connections.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing thermovalve 40 \u00b0C (60)<\/div>\n
The thermovalve is identified by black plastic section and by the designation „50 AA 4” punched into metal section. Pull-off vacuum hose at straight connect\u00adion, keep engine running and accelerate.<\/div>\n
Vacuum should be available at free connec\u00adtion.<\/div>\n
When removing and installing thermo\u00advalve, make sure that the small connecting pipes are not damaged.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/9 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
107-12314<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/10 USA 1977\/78\/79 F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\n

\"m110<\/p>\n

\n
1-57- 13-52^<\/div>\n<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
W7-10895<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/11 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
End of test<\/div>\n
14.2-100\/12 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
C. Tourist vehicles California version<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
For complaints such as:<\/div>\n<\/div>\n<\/td>\n
\n
\n
Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration, check emission control system for function.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test conditions:<\/div>\n<\/div>\n<\/td>\n
\n
\n
Engine at operating temperature, run engine at idle speed.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test the following:<\/div>\n<\/div>\n<\/td>\n
\n
\n
EGR, air injection and fuel evaporation control system.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Function diagram model year 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\u00a0 \u00a0 Mixture controller<\/div>\n
2\u00a0 \u00a0Ignition distributor<\/div>\n
9\u00a0 \u00a0Switch-over valve ignition<\/div>\n
31\u00a0 \u00a0 EGR valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
39\u00a0 \u00a0Charcoal canister<\/div>\n
40\u00a0 \u00a0Air pump<\/div>\n
41\u00a0 \u00a0 Air switch-over valve<\/div>\n
42\u00a0 \u00a0Check valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
60\u00a0 \u00a0Thermovalve 40 \u00b0C<\/div>\n
61\u00a0 \u00a0 Thermovalve 17 \u00b0C<\/div>\n
73\u00a0 \u00a0Thermovalve 50 \u00b0C<\/div>\n
74\u00a0 \u00a0Pressure relief valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
75 Pressure transducer 78 Air filter for silencing a Air injection line<\/div>\n
cylinder head c Connection tank vent<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/13 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Function diagram model year 1978\/79<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1<\/div>\n<\/div>\n<\/td>\n
\n
\n
Mixture controller<\/div>\n<\/div>\n<\/td>\n
\n
\n
39<\/div>\n<\/div>\n<\/td>\n
\n
\n
Charcoal canister<\/div>\n<\/div>\n<\/td>\n
\n
\n
61<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
2<\/div>\n<\/div>\n<\/td>\n
\n
\n
Ignition distributor<\/div>\n<\/div>\n<\/td>\n
\n
\n
40<\/div>\n<\/div>\n<\/td>\n
\n
\n
Air pump<\/div>\n<\/div>\n<\/td>\n
\n
\n
73<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
5<\/div>\n<\/div>\n<\/td>\n
\n
\n
Regenerating valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
41<\/div>\n<\/div>\n<\/td>\n
\n
\n
Air switch-over valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
74<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
9<\/div>\n<\/div>\n<\/td>\n
\n
\n
Switch-over valve ignition<\/div>\n<\/div>\n<\/td>\n
\n
\n
42<\/div>\n<\/div>\n<\/td>\n
\n
\n
Check valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
75<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1<\/div>\n<\/div>\n<\/td>\n
\n
\n
EGR valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
60<\/div>\n<\/div>\n<\/td>\n
\n
\n
Thermovalve 40 \u00b0C<\/div>\n<\/div>\n<\/td>\n
\n
\n
78<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n\n
\n
Thermovalve 1 7 \u00b0C Thermovalve 50 \u00b0C Pressure relief valve Pressure transducer Air filter for silencing<\/div>\n<\/div>\n<\/td>\n
\n
\n
80\u00a0 \u00a0 Auxiliary air valve<\/div>\n
81\u00a0 \u00a0 Contour hose<\/div>\n
a Air injection line<\/div>\n
cylinder head c Connection tank vent<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing EGR<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Pull brown vacuum<\/div>\n<\/div>\n<\/td>\n
\n
\n
line<\/div>\n<\/div>\n<\/td>\n
\n
\n
from EGR valve (31)<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
and slowly increase<\/div>\n<\/div>\n<\/td>\n
\n
\n
idle<\/div>\n<\/div>\n<\/td>\n
\n
\n
speed.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Engine runs irregularly<\/div>\n<\/div>\n<\/td>\n
\n
\n
Engine operation<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
starting at approx.<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
continues without<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1200\/min or comes<\/div>\n<\/div>\n<\/td>\n
\n
\n
to<\/div>\n<\/div>\n<\/td>\n
\n
\n
stop.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
a stop.<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/14 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\n
Test vacuum lines<\/strong><\/div>\n
Test layout of vacuum lines on transducer and intake pipe.<\/div>\n
Note that connections on pressure trans\u00adducer are identified with color rings. The plugged-on vacuum lines should have the same color.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\u00a0 \u00a0 Connection intake pipe vacuum (blue)<\/div>\n
2\u00a0 \u00a0 Connection vent line (white)<\/div>\n
3\u00a0 \u00a0Connection exhaust gas backpressure line (orange)<\/div>\n
4\u00a0 \u00a0 Connection vacuum control line to EGR valve (brown)<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
On black thermovalve 40 \u00b0C (60) the red vacuum line should be connected to dia\u00adgonal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum draw-off connections.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test thermovalve 40 \u00b0C (60)<\/strong><\/div>\n
The thermovalve is identified by black plastic section and by the designation „50 AA 4” punched into metal section.<\/div>\n
Pull-off vacuum hose at straight connec\u00adtion, keep engine running and accelerate.<\/div>\n
Vacuum should be available at free connection.<\/div>\n
When removing and installing thermovalve, make sure that the small connecting pipes are not damaged.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
14.2-100\/15 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\n
Test pressure transducer (75)<\/strong><\/div>\n
Run engine at idle. Pull-off brown vacuum line on EGR valve. Connect vacuum gauge or keep vacuum line closed with finger. Vacuum should be available at idle speed.<\/div>\n
If there is no vacuum, renew pressure transducer.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test EGR valve (31)<\/strong><\/div>\n
Run engine at idle speed. Pull-off both hoses on EGR valve.<\/div>\n
Plug brown vacuum line to connection for red\/purple vacuum line. Engine should run irregularly or come to a stop.<\/div>\n
If operation of engine is not changing, renew EGR valve.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
107-12314<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing air <\/strong>injection<\/div>\n
Connect CO measuring instrument and read exhaust gas emission value. Change vacuum hose from straight plug connection of thermo-valve (73) to straight plug connection of thermovalve (61).<\/div>\n<\/div>\n<\/td>\n
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Exhaust gas value clearly decreasing.<\/div>\n<\/div>\n<\/td>\n
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Exhaust gas value not decreasing.<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/16 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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Test vacuum <\/strong>lines<\/div>\n
The blue vacuum line from intake pipe should be connected to diagonal connec\u00adtion of thermovalve (61) by means of a distributor. The purple\/blue vacuum line leads from straight connection of thermo\u00advalve (61) to diagonal connection of thermovalve (73) and from straight connection of thermovalve (73) to air switch-over valve (41).<\/div>\n<\/div>\n<\/td>\n
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Test vacuum<\/strong><\/div>\n
Check at straight connection of thermo\u00advalve (61) for vacuum. If vacuum is available, renew air switch-over valve (41).<\/div>\n
If there is no vacuum:<\/div>\n
Pull-off blue vacuum line on thermovalve (61) and check for vacuum.<\/div>\n
If vacuum is available: Renew thermovalve (61). If there is no vacuum:<\/div>\n
Remove vacuum line to intake pipe and blow out with compressed air.<\/div>\n<\/div>\n<\/td>\n
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Test thermovalve (73)<\/strong><\/div>\n
If upon completion of the above jobs the exhaust gas value is still not decreasing, test thermovalve (73) for passage and renew, if required.<\/div>\n
Below approx. 50 \u00b0C thermovalve is open, above approx. <\/strong>50 \u00b0C valve is closed.<\/div>\n
The thermovalve is identified by black plastic section with a green color dot and by the designation „50 AA 13” punched into metal section.<\/div>\n
Note: <\/strong>Starting model year 1978 the identi\u00adfying color is green, designation „50 AC 13”.<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/17 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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Testing fuel evaporation control system<\/strong><\/div>\n
Pull-off black plastic line (draw-off line) to throttle valve housing from charcoal canister and keep closed with finger or connect vacuum gauge.<\/div>\n
Slowly increase engine speed to above approx. 2000\/min.<\/div>\n<\/div>\n<\/td>\n
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No vacuum at idle. Vacuum increasing at increasing speed.<\/div>\n<\/div>\n<\/td>\n
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Vacuum not increasing at increasing speed.<\/div>\n<\/div>\n<\/td>\n
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Model year 1977 <\/strong>Test draw-off hose<\/strong><\/div>\n
Draw-off hose must be plugged to throttle valve housing (arrow). Check hose for leaks and blow out connection on throttle valve housing.<\/div>\n<\/div>\n<\/td>\n
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End of test<\/div>\n<\/div>\n<\/td>\n
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Model year 1978\/79<\/strong><\/div>\n
Test draw-off hose and regenerating valve (purge valve)<\/strong><\/div>\n
Draw-off hose should be plugged to throttle valve housing (arrow). Check hose for leaks and blow out connection on throttle valve housing.<\/div>\n
If there is still no vacuum, pull-off draw-off hose in front of regenerating valve and repeat test.<\/div>\n
If vacuum is available, renew regenerating valve (purge valve).<\/div>\n<\/div>\n<\/td>\n
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14.2-100\/18 USA 1977\/78\/79 F2<\/div>\n<\/div>\n<\/td>\n
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    14\u2014100 Test program   Model year 1977\/78\/79   A. Federal version, tourist vehicles Federal version   For complaints such as: Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration, check emission control system for function.   Test conditions: Engine at operating temperature, run engine at idle speed.   Test the following: EGR, air injection and fuel evaporation control system.   Function diagram model year 1977     1\u00a0 \u00a0 Mixture controller 2\u00a0 \u00a0Ignition distributor 9\u00a0 \u00a0Switch-over valve ignition 31\u00a0 \u00a0 EGR valve_ 35\u00a0 \u00a0Check valve 39\u00a0 \u00a0Charcoal canister 40\u00a0 \u00a0Air pump 41\u00a0 \u00a0 Diverter valve (air switch-over valve) 42\u00a0 \u00a0Check valve 45 Air filter 60\u00a0 \u00a0Thermovalve 40 \u00b0C 61\u00a0 \u00a0 Thermovalve 17 \u00b0C 74\u00a0 \u00a0Pressure relief valve 75\u00a0 \u00a0Pressure transducer 78\u00a0 \u00a0Air filter for silencing a Air injection line b Connection tank vent   14.2-100\/1 USA 1977\/78\/79 F2       Function diagram model year 1978\/79     1\u00a0 \u00a0 Mixture controller 2\u00a0 \u00a0Ignition distributor 5 Regenerating valve (purge valve) 9 Switch-over valve ignition 31 EGR valve 35 Check valve 39\u00a0 \u00a0Charcoal canister 40\u00a0 \u00a0Air pump 41\u00a0 \u00a0 Diverter valve (air switch-over valve) 42\u00a0 \u00a0Check valve 45\u00a0 \u00a0Air filter 60\u00a0 \u00a0Thermovalve 40 \u00b0C 61\u00a0 \u00a0 Thermovalve 17 \u00b0C 74\u00a0 \u00a0Pressure relief valve 75\u00a0 \u00a0Pressure transducer 78\u00a0 \u00a0Air filter for silencing 80\u00a0 \u00a0Auxiliary air valve 81\u00a0 \u00a0 Contour hose a\u00a0 \u00a0 \u00a0Air injection line b\u00a0 \u00a0 \u00a0Connection tank vent   Testing EGR     Pull brown vacuum line from EGR valve (31) and slowly increase idle speed.   Engine runs irregularly Engine runs without starting at approx. change.   1200\/min or stops.       14.2-100\/2 USA 1977\/78\/79 F2       Testing vacuum lines Test layout of vacuum lines on pressure transducer and intake pipe. Note that connections on pressure trans\u00adducer are identified with color rings. The attached vacuum lines should have the same color. 1\u00a0 \u00a0 Connection intake pipe vacuum (blue) 2\u00a0 \u00a0 Connection vent line (white) 3\u00a0 \u00a0Connection exhaust gas backpressure line (orange) 4\u00a0 \u00a0 Connection vacuum line to EGR valve (brown) On black thermovalve 40 \u00b0C (60) the red vacuum line should be plugged to diago\u00adnal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum connections. Testing thermovalve 40 \u00b0C (60) The thermovalve is identified by a black plastic section and the designation „50 AA 4” punched into metal section. Pull-off vacuum hose at straight connec\u00adtion, let engine run and accelerate. Vacuum should be felt at free connection. During removal and installation of thermo\u00advalve make sure that the small connecting pipes are not damaged.   14.2-100\/3 USA 1977\/78\/79 F2       1O7-123M   14.2-100\/4 USA 1977\/78\/79 F2       Testing vacuum lines The blue vacuum line from intake pipe should be connected to blue line and diagonal connection of thermovalve (61) by means of a distributor and check valve. The check valve should be plugged on with connection (A) in direction of intake pipe. The blue\/purple vacuum line of straight connection of thermovalve (61) leads to diverter valve (41). Testing vacuum Pull vacuum line from diagonal connec\u00adtion of thermovalve (61), connect vacuum gauge or keep closed with finger. Vacuum should be available at idle speed. If not, test vacuum lines for leaks and blow out vacuum draw-off line (tapping line) at intake pipe. If vacuum is available, test thermovalve (61) and renew, if required. Testing thermovalve 17 \u00b0C (61) The thermovalve is identified by a blue plastic section and the designation „50 AB 5” punched into metal section. Pull-off blue\/purple vacuum line, run engine. Vacuum should be available at free connection. If thermovalve is in order, renew diverter valve (41). 107-10895   14.2-100\/5 USA 1977\/78\/79 F2         End of test   14.2-100\/6 USA 1977\/78\/79 F2       B. California version   For complaints such as: Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration, check emission control system for function.   Test conditions: Engine at operating temperature, run engine at idle speed.   Test the following: EGR, air injection and fuel evaporation control system.   Function diagram model year 1977     1\u00a0 \u00a0 Mixture controller 2\u00a0 \u00a0Ignition distributor 9\u00a0 \u00a0Switch-over valve ignition 31\u00a0 \u00a0 EGR valve 39\u00a0 \u00a0Charcoal canister 40\u00a0 \u00a0Air pump 41\u00a0 \u00a0 Air switch-over valve 42\u00a0 \u00a0Check valve 60\u00a0 \u00a0Thermovalve 40 \u00b0C 61\u00a0 \u00a0 Thermovalve 1 7 \u00b0C 73\u00a0 \u00a0Thermovalve 50 \u00b0C 74\u00a0 \u00a0Pressure relief valve 75\u00a0 \u00a0Pressure transducer 78 Air filter for silencing a Air injection line cylinder head b Air injection line be\u00adtween catalysts c Connection tank vent   14.2-100\/7 USA 1977\/78\/79 F2       Function diagram model year 1978\/79     1\u00a0 \u00a0 Mixture controller 2\u00a0 \u00a0Ignition distributor 5\u00a0 \u00a0Regenerating valve 9\u00a0 \u00a0Switch-over valve ignition 31\u00a0 \u00a0 EGR valve 39\u00a0 \u00a0Charcoal canister 40\u00a0 \u00a0Air pump 41\u00a0 \u00a0 Air switch-over valve 42\u00a0 \u00a0Check valve 60\u00a0 \u00a0Thermovalve 40 \u00b0C 61\u00a0 \u00a0 Thermovalve 17 \u00b0C 73\u00a0 \u00a0Thermovalve 50 \u00b0C 74\u00a0 \u00a0Pressure relief valve 75\u00a0 \u00a0Pressure transducer 78\u00a0 \u00a0Air filter for silencing 80\u00a0 \u00a0Auxiliary air valve 81\u00a0 \u00a0 Contour hose a Air injection line cylinder head b Air injection line be\u00adtween catalysts c Connection tank vent   Testing EGR Pull-off brown vacuum line on EGR valve (31) and slowly increase idle speed. Engine runs irregularly starting at approx. 1200\/min or comes to a stop. Engine operation continues without stop.   14.2-100\/8 USA 1977\/78\/79 F2       Testing vacuum lines Test layout of vacuum lines on transducer and intake pipe. Note that connections on pressure trans\u00adducer are identified with color rings. The plugged-on vacuum lines should have the same color.   1\u00a0 \u00a0 Connection intake pipe vacuum (blue) 2\u00a0 \u00a0Connection vent line (white) 3\u00a0 \u00a0Connection exhaust gas backpressure line (orange) 4\u00a0 \u00a0Connection vacuum line to EGR valve (brown)   On black thermovalve 40 \u00b0C (60) the red vacuum line should be connected to diagonal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum draw-off connections. Testing thermovalve 40 \u00b0C (60) The thermovalve is identified by black plastic section and by the designation „50 AA 4” punched into metal section. Pull-off vacuum hose at straight connect\u00adion, keep engine running and accelerate. Vacuum should be available at free connec\u00adtion. When removing and installing thermo\u00advalve, make sure that the small connecting pipes are not damaged.   14.2-100\/9 USA 1977\/78\/79 F2       107-12314   14.2-100\/10 USA 1977\/78\/79 F 2       1-57- 13-52^ W7-10895   14.2-100\/11 USA 1977\/78\/79 F2       End of test 14.2-100\/12 USA 1977\/78\/79 F2       C. Tourist vehicles California version   For complaints such as: Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration, check emission control system for function.   Test conditions: Engine at operating temperature, run engine at idle speed.   Test the following: EGR, air injection and fuel evaporation control system.   Function diagram model year 1977     1\u00a0 \u00a0 Mixture controller 2\u00a0 \u00a0Ignition distributor 9\u00a0 \u00a0Switch-over valve ignition 31\u00a0 \u00a0 EGR valve 39\u00a0 \u00a0Charcoal canister 40\u00a0 \u00a0Air pump 41\u00a0 \u00a0 Air switch-over valve 42\u00a0 \u00a0Check valve 60\u00a0 \u00a0Thermovalve 40 \u00b0C 61\u00a0 \u00a0 Thermovalve 17 \u00b0C 73\u00a0 \u00a0Thermovalve 50 \u00b0C 74\u00a0 \u00a0Pressure relief valve 75 Pressure transducer 78 Air filter for silencing a Air injection line cylinder head c Connection tank vent   14.2-100\/13 USA 1977\/78\/79 F2       Function diagram model year 1978\/79     1 Mixture controller 39 Charcoal canister 61 2 Ignition distributor 40 Air pump 73 5 Regenerating valve 41 Air switch-over valve 74 9 Switch-over valve ignition 42 Check valve 75 1 EGR valve 60 Thermovalve 40 \u00b0C 78 Thermovalve 1 7 \u00b0C Thermovalve 50 \u00b0C Pressure relief valve Pressure transducer Air filter for silencing 80\u00a0 \u00a0 Auxiliary air valve 81\u00a0 \u00a0 Contour hose a Air injection line cylinder head c Connection tank vent   Testing EGR     Pull brown vacuum line from EGR valve (31) and slowly increase idle speed. Engine runs irregularly Engine operation starting at approx.   continues without 1200\/min or comes to stop. a stop.       14.2-100\/14 USA 1977\/78\/79 F2       Test vacuum lines Test layout of vacuum lines on transducer and intake pipe. Note that connections on pressure trans\u00adducer are identified with color rings. The plugged-on vacuum lines should have the same color. 1\u00a0 \u00a0 Connection intake pipe vacuum (blue) 2\u00a0 \u00a0 Connection vent line (white) 3\u00a0 \u00a0Connection exhaust gas backpressure line (orange) 4\u00a0 \u00a0 Connection vacuum control line to EGR valve (brown) On black thermovalve 40 \u00b0C (60) the red vacuum line should be connected to dia\u00adgonal connection, and the rubber hose to straight connection. Check all pertinent vacuum lines for leaks and blow out vacuum draw-off connections. Test thermovalve 40 \u00b0C (60) The thermovalve is identified by black plastic section and by the designation „50 AA 4” punched into metal section. Pull-off vacuum hose at straight connec\u00adtion, keep engine running and accelerate. Vacuum should be available at free connection. When removing and installing thermovalve, make sure that the small connecting pipes are not damaged.   14.2-100\/15 USA 1977\/78\/79 F2       Test pressure transducer (75) Run engine at idle. Pull-off brown vacuum line on EGR valve. Connect vacuum gauge or keep vacuum line closed with finger. Vacuum should be available at idle speed. If there is no vacuum, renew pressure transducer. Test EGR valve (31) Run engine at idle speed. Pull-off both hoses on EGR valve. Plug brown vacuum line to connection for red\/purple vacuum line. Engine should run irregularly or come to a stop. If operation of engine is not changing, renew EGR valve. 107-12314   Testing air injection Connect CO measuring instrument and read exhaust gas emission value. Change vacuum hose from straight plug connection of thermo-valve (73) to straight plug connection of thermovalve (61).   Exhaust gas value clearly decreasing. Exhaust gas value not decreasing.   14.2-100\/16 USA 1977\/78\/79 F2       Test vacuum lines The blue vacuum line from intake pipe should be connected to diagonal connec\u00adtion of thermovalve (61) by means of a distributor. The purple\/blue vacuum line leads from straight connection of thermo\u00advalve (61) to diagonal connection of thermovalve (73) and from straight connection of thermovalve (73) to air switch-over valve (41).   Test vacuum Check at straight connection of thermo\u00advalve (61) for vacuum. If vacuum is available, renew air switch-over valve (41). If there is no vacuum: Pull-off blue vacuum line on thermovalve (61) and check for vacuum. If vacuum is available: Renew thermovalve (61). If there is no vacuum: Remove vacuum line to intake pipe and blow out with compressed air. Test thermovalve (73) If upon completion of the above jobs the exhaust gas value is still not decreasing, test thermovalve (73) for passage and renew, if required. Below approx. 50 \u00b0C thermovalve is open, above approx. 50 \u00b0C valve is closed. The thermovalve is identified by black plastic section with a green color dot and by the designation „50 AA 13” punched into metal section. Note: Starting model year 1978 the identi\u00adfying color is green, designation „50 AC 13”.   14.2-100\/17 USA 1977\/78\/79 F2       Testing fuel evaporation control system Pull-off black plastic line (draw-off line) to throttle valve housing from charcoal canister and keep closed with finger or connect vacuum gauge. Slowly increase engine speed to above approx. 2000\/min.   No vacuum at idle. Vacuum increasing at increasing speed. Vacuum not increasing at increasing speed.   Model year 1977 Test draw-off hose Draw-off hose must be plugged to throttle valve housing (arrow). Check hose for leaks and blow out connection on throttle valve housing. End of test Model year 1978\/79 Test draw-off hose and regenerating valve (purge valve) Draw-off hose should be plugged to throttle valve housing (arrow). Check hose for leaks and blow out connection on throttle valve housing. If there is still no vacuum, pull-off draw-off hose in front of regenerating valve and repeat test. If vacuum is available, renew regenerating valve (purge valve)….<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[37,27],"tags":[],"class_list":["post-2668","post","type-post","status-publish","format-standard","hentry","category-emission-oxygen-sensor-control-egr-exhaust","category-m110"],"aioseo_notices":[],"featured_image_src":null,"author_info":{"display_name":"mackuz","author_link":"https:\/\/mbci.mackuz.ovh\/index.php\/author\/mackuz\/"},"_links":{"self":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=2668"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2668\/revisions"}],"predecessor-version":[{"id":2669,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2668\/revisions\/2669"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}