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Fault codes 2fbc/2fbd

Hi all i have a problem with my bmw 335i 2007 n54 car i have the following fault code 2fbc fuel supply controle valve signal and sometimes i also get 2fbd the car is running stage 1 mhd map and runs really well...is this a sign of a hpfp failer?

Thanks Jonny
Old 01-05-2019, 09:31 AM
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Dmitry at Pelican Parts's Avatar
 
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I have a '08 135i and had this issue as well, but it ended up being my fuel pump assembly with the fuel level sending unit (in the gas tank).
Old 01-08-2019, 04:09 PM
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Hi thanks for the reply not sure what would cause that? Thanks jonny
Old 01-11-2019, 10:35 AM
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From what I've read and heard, the N54 motors are prone to hpfp failures, so you may be right to assume that. I'm including a link to one of our site's DIY tech articles on the fuel pump test and also to an earlier thread where this is discussed - hope this helps you out a bit in troubleshooting.

https://www.pelicanparts.com/BMW/techarticles/BMW-3-Series-E90/FUEL-Fuel_Pump_Testing/FUEL-Fuel_Pump_Testing.htm

https://www.e90post.com/forums/showthread.php?t=1331368
Old 01-11-2019, 11:01 AM
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Will give it a look thanks its not causing any lights on the dash etc so will probably leave it till i get some issues?
Old 01-12-2019, 03:34 AM
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