ENGINE LITE ON CODE READER SAYS PO171 AND ...

1998 Ford E-Series Van

Tiny

Anonymous

January, 5, 2013 AT 4:47 PM

ENGINE LITE ON-- CODE READER SAYS PO171 AND PO174. WHAT DOES THIS MEAN?

1 Answer

Tiny

ASEMaster6371

January, 5, 2013 AT 5:28 PM

Lean codes.

Could be vacuum leak, pcv valve, mass air flow sensor or low fuel pressure. You need to have the long term trims monitored to help with determining the failure

Roy

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