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Idle Problem Diagnosis 200 1991

posted by  UlisKeeper on  Wed Apr 5 06:07 CST 2017
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last visit: Wed Oct 22 10:50 CST 2014
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Have been chasing an idle problem when engine is warmed up. The O2 sensor at startup reads .5 and rises to .8 and stays there at idle. I get some response when revving engine, but pretty flat at sustained higher RPM also. Does this mean that the O2 sensor is at fault or is it reading the situation correctly and I should be looking elsewhere first? On a separate note, is there a list somewhere of which MAFs go with each ECU? I have the original and two I picked off 2.4 240/740s. Just want to be sure that the ones I have will work okay.






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New Idle Problem Diagnosis [200][1991]
posted by  UlisKeeper  on Wed Apr 5 06:07 CST 2017 >


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