Lean bank 1 and 2 codes (P0171, p0174)
05-17-2010, 11:29 AM
#21
Staging Lane
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What vacuum hoses do I have to unhook and where is the FPR to even check? And is there anyway to test the the regulator or pump before I take the tank out. It was always my understanding that a faulty fpr would cause a rich problem not a lean. Especially the pressure with a faulty afr would actually be higher then normal causing the rich condition.
Last edited by Taylor3180; 05-17-2010 at 12:05 PM.
