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      09-20-2019, 05:47 PM   #1
bmw4lyfe
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Some insight needed for 2004 645CI Fault codes

A friend of mine bought a used E64 with some issues...heres a list of the codes that the car has...i didnt run the codes myself this is just a print out list he gave me from someone who did run them for him...Car runs great, shifts good, idles smooth...


29A9 Power Management


299B Communication Engine ECU- IBS


27D3 Catalytic - Converter Conversion (bank 2)


2772 Control Tank - Ventilation Valve


2889 Plausibility Monitoring Of The Ram Backup


2862 VVT- Power Supply


2863 VVT - Power Supply (bank 2)


So the First 2 codes are something to do with the battery...I do know that the original owner replaced the battery but never got it registered to the car so that could be something to do with that...


the other codes i did read into them but i want to find out what you guys can tell me first before i set my mind on a fix for them...


Thanks any help, tips, tricks, options, ideas are all greatly appreciated and could help me move forward...
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      09-20-2019, 06:08 PM   #2
Derekz4
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Without looking into to it, I’ll bet a right nut the secondary air pump has failed.
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