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Old 01-08-2006, 09:12 AM   #7
Jeff Chambers
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Join Date: Aug 2000
Location: Milan, OH
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Default Re: O2 sensor help...

Remember, don't try to ohm out the O2 sensors themselves or you'll damage them. You should check the wiring between the sensors and the PCM though since they'll often get oil soaked and start to break down. Don't trust your smell along, get a wide band to see what's really whats happening. Are you sure that its not the MAF function that is too far off? The PCM will only correct 25% in either direction so if your maf function is off farther than that, the computer still won't be able to pull enough fuel to get to the commanded lambda.
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