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Help with 2000 Ford Focus

Tiny
CRAZYED2009
  • MEMBER
  • 2000 FORD FOCUS
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 45,000 MILES
I have a 2000 ford focus. The check engine light keeps coming on. The code reads P071 (System Too Lean). I have replaced both O2 sensors, cleaned the MAF sensor and replaced the fuel filter. My wife complained that there was loss of power and poor gas mileage. Once I replaced the fuel filter she says the power is back but have not had enough time to assess the gas mileage. What should I do next to get this fault to go away?
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Tuesday, May 24th, 2011 AT 4:44 AM

3 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Did you clear the code after your repair(s)?

Maybe it's already gone, you just don't know it.

The Medic
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Tuesday, May 24th, 2011 AT 3:57 PM
Tiny
CRAZYED2009
  • MEMBER
  • 2 POSTS
Yes. I have cleared the code several times and it keeps coming back
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Tuesday, May 24th, 2011 AT 5:01 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Vacuum leaks can also make the engine burn leaner.

The Medic
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Tuesday, May 24th, 2011 AT 5:33 PM

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