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Smog Check Hell 200 1984

posted by  Onkel Udo II on  Tue Oct 14 09:47 CST 2014
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last visit: Fri Oct 24 08:50 CST 2014
[RELATED]

"thus causing the AMM to try to overcompensate?" Sound concept but incorrect wording. The AMM does not add fuel to your engine so it cannot compensate.

Unmetered air means the AMM does not know the engine is sucking it in. You AMM tells the ECM/ECU how much air is going in so the computer can guess how much fuel to add. The oxygen sensor tells the computer how close its guess was.






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