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Re: Ford Code P1121 ???
Posted to Technical Discussion Forum on 8/22/2003 1 Reply

hi Steve;

some info on the rationality MAF/TP;

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in the next link scroll down to "Diagnosing Contaminated MAF Sensors"

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With the slightly elevated TPS and MAF idle readings I'd verify the ground circuit at each sensor with a voltage drop tes... Login to read more.

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