recently my check engine light came on and the trucks bogs down on acceleration and has a rough idle. I know the code means bank 1 is rich but before I spend hundreds I'd like to try to fix the "most common" problems.
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2006 Ford F-150 Question: what is the "most" common problem when code PO172 appears?
Answer #1mrfordman August 27, 2013, 20:03Journeyman
if it has a 5.4 engine, had a problem with injectors sticking open. ford has a recall for this. give your local dealer a call to find out if your vehicle is covered.
Replyfrank_romo, August 27, 2013, 20:07Rookie
it has the 4.6 engine with about 63k miles. do u think its most likely the MAF?
Replymrfordman, August 28, 2013, 06:34Journeyman
maf usually sets a lean code. may still be an injector even if it is a 4.6.