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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 > LPFP and fuel open Loop codes



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      04-23-2018, 02:40 PM   #1
domain007
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LPFP and fuel open Loop codes

Hey guys would these two codes inidate a failing LPFP or HPFP?
29E2
29F2
half CEL
There the fuel loop open and high pressure rail sensor codes.

I did some quick tests with inpa and before car is on I get a rail pressure of 4000 Hpa, Is that within spec? when the car is running at idle my HPFP is getting around 14000 Hpa. i dont have logs as i just replaced the front 3 injectors with index 12 (had a missfire on cyl3) and now, about a week later, the other 3 injectors died and i have a miss on cyl 6 (damn car is a padoras box hahaha). Also, the car started doing the infamous "hit a brick wall feeling" as well as the codes and CEL the day before it started missfiring at idle.

Keeping the bad injectors in mind, can the also trigger those two codes and a half engine light?

Thanks in advance guys!
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      04-25-2018, 11:32 PM   #2
domain007
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Update:

Replacing injectors made all my troubles disappear Thanks to all the guys who made the awesome DIYs on coding and installing injectors!!
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