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DTC 2274 02 sensor bank 1 sensor 3 stuck on lean

Tiny
RANDY SHARP
  • MEMBER
  • 2003 FORD FOCUS
  • 2.3L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
This problem with this car has been going on now for couple of years, and I have been neglecting it because it hasn't had a big difference on it running but cutting out once in a while. But now I tried to get it a smog today and I even turned off the check engine light and I guess they have a way now that they know a person resets there computer with out fixing the trouble code, it worked a couple of years ago, any way now I need to find the problem now. Does anyone know where I should start?Thanks
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Thursday, October 8th, 2015 AT 11:35 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
So many things can cause a check light to come on, I do need a code from the ecu, there may be one stored so go get a scan and re post what they find re codes, they should be able to look at the history to see deleted codes as well.
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Friday, October 9th, 2015 AT 12:00 AM
Tiny
RANDY SHARP
  • MEMBER
  • 165 POSTS
Yes the code is 2274 that is what comes up on my scanner
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Friday, October 9th, 2015 AT 8:37 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Two things I would consider are faulty O2 sensor, this can be checked with a live data read to see if the voltages are changing and look for any air leaks in the exhaust and vacuum leaks in the engine, start here.
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Tuesday, October 13th, 2015 AT 2:19 AM

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