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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 07-16-2008, 02:46 PM   #1 (permalink)
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New Member with P1250/P1189 Problem (e39 528i)

Hi there- I am new member
528i 99, I am having a weird noise/sound on the engine compartment
I run an OBD and reads out P1250 and P1189.

Need help what to replace
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Old 07-16-2008, 04:02 PM   #2 (permalink)
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P1250 is "FUEL LEVEL TOO LOW" code. level to low to run monitor

P1189 is a Fuel control problem - Bank2 Sensor1
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Old 07-17-2008, 07:09 AM   #3 (permalink)
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What do I need to do to fix the problem? also what parts
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Old 07-17-2008, 09:18 AM   #4 (permalink)
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P1250, like the code suggests requires that you fill your tank to an acceptable level. At least 1/4th tank.

P1189 suggests Bank2 Sensor1 - that is your pre-CAT oxygen sensor for cylinders 3-6

*fuel control problems are sometimes complicated; and oftentimes, just because you get a code-it doesn't mean that replacing the part mentioned will correct your prob. But it is a start...

you also need to know that sensors will only work correctly if your engine is mechanically sound - so for fuel & emissions probs, for cars with an unknown history of maintenance; the rule-of-thumb is do a tune-up first before you probe electrics.

Good Luck.
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