2004 BMW X3 2004 X3 SES light

Tiny
LESROCK
  • MEMBER
  • 2004 BMW X3
Computer problem
2004 BMW X3 6 cyl All Wheel Drive Automatic

Getting p0171 and p0174 codes.
Don't notice any real difference in driving.
Had car serviced earlier this year for p0151 and p0154.

Any ideas?

Thanks,
L
Monday, November 16th, 2009 AT 11:09 AM

3 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,603 POSTS
It could be several things, air mass sensor, a leak at the intake, lazy O2 sensors. Have you tried resetting them yet?
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Tuesday, November 17th, 2009 AT 12:56 PM
Tiny
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Thanks for the reply. I have not reset the faults yet.
How can I go about that?
I do not have a scanner.
Do I just disconnect the battery for a bit?

Thanks again,
L
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Tuesday, November 17th, 2009 AT 1:15 PM
Tiny
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Unfotunately, no. You will need to invest in a scanner.
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Tuesday, November 17th, 2009 AT 1:17 PM

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