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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Bad HPFP?



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      06-11-2020, 05:51 PM   #1
kaden_o11
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Bad HPFP?

Got a 29DC code (cylinder injection cutoff), and went into limp mode (no engine light though)

Heres a log, just checking if anyone can confirm it is my HPFP.
https://datazap.me/u/kaden-oseen/2nd...og=0&data=3-20

Thanks in advance!
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      06-11-2020, 11:42 PM   #2
Recoiletiquette
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That dont seem like a HPFP problem to me. It seems more like a bad coil, plug or injector.
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      06-12-2020, 10:45 AM   #3
mweisdorfer
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Quote:
Originally Posted by kaden_o11 View Post
Got a 29DC code (cylinder injection cutoff), and went into limp mode (no engine light though)

Heres a log, just checking if anyone can confirm it is my HPFP.
https://datazap.me/u/kaden-oseen/2nd...og=0&data=3-20

Thanks in advance!
How old are your o2 sensors ?
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      06-12-2020, 04:49 PM   #4
GearHead335i
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Quote:
Originally Posted by kaden_o11 View Post
Got a 29DC code (cylinder injection cutoff), and went into limp mode (no engine light though)

Heres a log, just checking if anyone can confirm it is my HPFP.
https://datazap.me/u/kaden-oseen/2nd...og=0&data=3-20

Thanks in advance!
Lol I just got the same code among others. Car buckled and was stuttering the. Eventually shut off. Did this about 5 times then when I got it running I WOT and it seems fine now. Weird N54 problems. I have 162k tho and I believe the original HPFP. I also recently installed a stage 2 Walbro 450 so might be that.
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      06-14-2020, 05:20 PM   #5
kaden_o11
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Quote:
Originally Posted by Recoiletiquette View Post
That dont seem like a HPFP problem to me. It seems more like a bad coil, plug or injector.
Just installed PR coil pack and new spark plugs about 2000 miles ago

Last edited by kaden_o11; 06-14-2020 at 10:33 PM..
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