Please, Help. 4 codes popped up!!! - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 02-10-2009, 10:24 PM
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Question Please, Help. 4 codes popped up!!!

The "service engine" light came on my E39. Actually it is been on and off back and forth for past couple of weeks. I had it checked at local AutoZone and they came up with four different codes: P1188, P1189, P1250, and P1624. Based on the printout I got from them, the P1188 is defined as "Fuel control (bank 1 sensor 1)" and P1189 - "Fuel control (bank 2 sensor 1). The other two codes, however, do not list anything for BMW at all. Do you think it all might be related to the O2 sensors (or air mas sensor)? Please, help sorting it out. The crew in the store was trying to help but they could not make much sense out of the data. Thanks a bunch
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#2 (permalink) Old 02-11-2009, 12:37 AM
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Please, Help. 4 codes popped up!!!

I had the same issue on my 540 but a different code. The P1188 and P1189 are the pre cat O2 sensors. The O2 sensors usually go out around 100,000 - 120,000 miles. The cheapest place I found was Bavarian Auto. You may want to replace the O2 sensores, clear the error codes and see if the P1250 and P1624 errors return. If the P1250 and P1624 return you could spray brake kleen around around the intake manifold gasket and the throttle body gasket to see if there is a vacume leak. If the idle increases when you spray around the seams you havea vacume leak and will need to replace the gasket.

Good Luck
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#3 (permalink) Old 02-11-2009, 02:32 AM
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Thank you very much, DaleM. Yes, mine is at 110K mi. I will replace both O2 sensors and see what happens. Regards
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