Checking idle speed shutoff valves for function
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07.2—102 Checking idle speed shutoff valves for function
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Function test
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1 Switch ignition on and then off again, each time the operating noise of the idle speed shutoff valves should be clearly heard or should be felt with hand.
2 Run engine at idle speed. Pull plug (253) from one valve, engine speed should clearly drop or engine should start hunting. Check likewise at opposite valve.
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Leak test
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3 Run engine at idle speed. Simultaneously pull both plugs (253) from valves, engine should stop immediately without afterrunning. Replace shutoff valve, if required.
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07.2.2 la-102/1
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