ENGINE LITE ON-- CODE READER SAYS PO171 AND.

Tiny
ANONYMOUS
  • MEMBER
  • 1998 FORD E-SERIES VAN
  • 80,000 MILES
ENGINE LITE ON-- CODE READER SAYS PO171 AND PO174. WHAT DOES THIS MEAN?
Saturday, January 5th, 2013 AT 4:47 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
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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Saturday, January 5th, 2013 AT 5:28 PM

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