Mechanics

FORD F-150 FUEL PRESSURE PROBLEM

1998 Ford F-150 • 100 miles

I have a ford f150 with the gasoline 5.4l motor in it, it has the 2 codes for lean bank 1 and 2 (p0171 and p0174)
how do I test the maf sensor and can or should it be cleaned at all?
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Guest
December 30, 2012.




Could be a vacuum leak, bad pcv, low fuel pressure or a bad mass air flow.

Cleaning never works for mass air flow.

Roy

ASEMaster6371
Dec 30, 2012.


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