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How do I fix a P0171 and P0174 codes, I have a.

Tiny
JONNYBLADE
  • MEMBER
  • 2000 FORD RANGER
  • 113,000 MILES
How do I fix a p0171 and p0174 codes, I have a 2000 ford ranger 113,000 miles total loss of power up hills, please help
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Saturday, January 5th, 2013 AT 11:44 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Could be vacuum leak, pcv valve, low fuel pressure, or bad mass air flow sensor

Roy
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Saturday, September 30th, 2017 AT 4:56 PM
Tiny
JONNYBLADE
  • MEMBER
  • 2 POSTS
Thank you roy, I failed to mention it throws 4 codes p0171, p0174, p1131, p1151, where should I start, i'm lost
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Saturday, September 30th, 2017 AT 4:56 PM

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