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po172, and po175....

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Old 07-17-2005, 01:35 PM
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Default po172, and po175....

could this be caused by bad spark plugs? I also know my maf has been reading low, but i had the maf tables readjusted to bring the readings more into line. Any suggestions?
Old 07-17-2005, 02:43 PM
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i've asked this question before and gotten no good answer. i'm thowing the same 2 codes right now. hopefully someone will have an answer
Old 07-17-2005, 03:06 PM
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got the code also, 20-30 miles after removing the screen out of the MAF
Old 07-17-2005, 03:57 PM
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P0172 and P0175 are fuel trims rich, banks 1 & 2. Spark plugs won't do that.

If you know your MAF is reading low or is modified in any way, then the MAF needs to be re-calibrated.
Old 07-17-2005, 07:05 PM
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Originally Posted by SUPRYZE
P0172 and P0175 are fuel trims rich, banks 1 & 2. Spark plugs won't do that.

If you know your MAF is reading low or is modified in any way, then the MAF needs to be re-calibrated.
i know the maf was origionally reading low, but i had a knowledgeable tuner help me get it much closer than it was previously, yet it never threw a code before, only after... i cleared the codes, maybe they will stay gone...

can the problem be fixed with VE tuning?



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