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bmdubya1198 06-30-2012 10:10 AM

2003 X5 Repair Help
This is kind of a follow up to my last thread (

I got the OBD II Codes read and they came out to this:

P1500- The manual doesn't show this code for some reason
P0174- System too lean (bank 2)
P0171- System too lean (bank 1)

I can't fix anything if I don't know what's wrong, so if someone by any chance knows what the first code means, please let me know, I'd really appreciate it.


Zulu95 06-30-2012 10:49 AM

P1500 Idle Speed Control Valve Stuck Open (BMW)

I would check for leaks in the rubber boot connected to the throttle body and/or the vacuum system.

bmdubya1198 06-30-2012 10:54 AM

I'll check that out

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