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Stumbling Idle Problems Update 200 1986

posted by  someone claiming to be David Hunter on  Fri Apr 26 05:57 CST 2002 [RELATED]

It is my experience with the LH2.2 system that disconnecting the coolant temp sensor creates infinitely high resistance and therefore makes the ECU think that the engine is cold resulting in a rich mixture required for starting. However once warmed up the engine will run very rich with black smoke, low power, stalling etc.

The reference to an out of spec signal causing a default to 68 degrees may refer to the LH2.4 systems which have a few more smarts. I think your car has the LH 2.2 system though.

Ringlee or Foster may be able to clarify.






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New Stumbling Idle Problems Update [200][1986]
posted by  sandkv  on Thu Apr 25 21:22 CST 2002 >


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