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2000 BMW X5 codes

Tiny
RNASH32
  • MEMBER
  • 2000 BMW X5
  • V8
  • AWD
  • AUTOMATIC
  • 10,942 MILES
I have 3 codes that pop up on my scanner 0171,0173,1340
2 of them are fuel trim
the other says misfire malfunction during start up. i do have a small coolant leak that will be repaired on mon. what can cause the fuel trim problem and the misfire malfunction. the car seems to run good,a little harder on gas than usual.thanx


http://www.2carpros.com/forum/automotive_pictures/275341_PK05YPN_01_pf_050808_20_1.jpg

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Saturday, November 22nd, 2008 AT 12:15 PM

3 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Do you know where the coolant leak is coming from? The higher mileage M-62 motors can have a significant repair expense for certain failures. A PCV plate and intake reseal may be needed to remedy the fuel trim faults, and perhaps replacement of both the pre-cat oxygen sensors, then reset the adaptations and drive to complete readiness monitors.
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Saturday, November 22nd, 2008 AT 1:07 PM
Tiny
RNASH32
  • MEMBER
  • 2 POSTS
I do not know where the leak is, it;s a slow leak my check coolant level light comes on about every 3 days after adding coolant to it
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Saturday, November 22nd, 2008 AT 1:20 PM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Pressure testing the cooling system is needed to pinpoint the leak.
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Friday, December 5th, 2008 AT 12:35 AM

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