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Re: GM P0172 / P0175
Posted to Technical Discussion Forum on 8/8/2013 2 Replies

Ed

You didn't state the vin of the motor, is this a flex fuel engine? If so, what is your alcohol percentage pid reading?

If the alcohol content isn't correct or the pressure is fixed too high or too low, this will show up in a trim map.

The FPCM sensor ... Login to read more.

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