I HAVE A FORD F150 WITH THE GASOLINE 5

1998 Ford F-150

Tiny

Anonymous

December, 30, 2012 AT 11:42 PM

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?

1 Answer

Tiny

ASEMaster6371

December, 30, 2012 AT 11:52 PM

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

Cleaning never works for mass air flow.

Roy

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