2004 Lincoln LS P0171, P0174

Tiny
ATTIKIS
  • MEMBER
  • 2004 LINCOLN LS
  • V8
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
I'm getting these codes. Car was riding great, all of a sudden the check engine light comes on, I get a code reader and I get codes P0171 and P0174. The car is now a little sluggish and sometimes seems to have no power. Help?
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Friday, June 4th, 2010 AT 6:48 AM

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Tiny
RASMATAZ
  • MEMBER
P0171/P0174 Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
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Friday, June 4th, 2010 AT 6:54 AM

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