2001 Ford Taurus Mass Air Flow or O2 Sensor

Tiny
RVOGT
  • MEMBER
  • 2001 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 135,000 MILES
My 2001 Ford Taurus recently had the check engine light come on and a few days later started idling rough. It stalls out sometimes at a stop and you have to give it gas to get it started. I had the code pulled and it indicated a lean condition and pointed to either the Mass air Flow sensor or the O2 sensor. I put a different (used) Mass Air Flow sensor but that didn't help at all. What is the chances that I got another bad one (do they tend to go Out?) And is it more likely to be the O2 sensors?
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Thursday, August 13th, 2009 AT 6:57 PM

1 Reply

Tiny
MHPAUTOS
  • EXPERT
Hi there,

You may well have a faulty sensor, you may have a vacuum leak problem or an O2 sensor, also a exhaust leak up stream of the O2 sensor can give this code also a faulty injector can produce a lean burn as well.

Mark (mhpautos)
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Thursday, August 13th, 2009 AT 7:00 PM

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