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245 correct idle after start but high after use 200 1992

uid 60851's pic
posted by  Grey245 on  Tue Dec 8 15:28 CST 2020
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Time to revisit my thread.

I have found a kind of workaround. If I apply enough throttle when the engine is cold and while manoeuvring, then the high idle state is unlikely to occur. However, if I rely on the IAC to keep revs constant while manoeuvring on a cold engine (meaning I only apply the clutch and let the IAC do the rest), then the high idle state is likely to occur, regardless of the engine temperature, and can be sort of reset by shortly turning off the ignition.

I don't know why it works this way, but it does.






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