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      06-17-2018, 04:02 PM   #1
Kwroz21
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2009 135i CEL Codes

Need some help trouble shooting an issue I've now come across for the second time.
I got a CEL light today after AutoXing the car yesterday. I didn't notice anything yesterday during or after the event.
The first time I came across this issue was moments before a track day. I cleared the codes, went out for a few laps to see how the car would respond, and nothing. I was able to push the car with any issues.

My Cobb is displaying the following codes : P1449, P2AAF, P2A2D, P2B3C, P2B3A.
My Carly device only displays the following : P2AAF, P2A2D, P2B3C, P2B3A

I looked the codes up online
P1449 - Diagnostic Module Tank Leakage Pump Too High - I think this is the carbon canister.
P2AAF - fuel pump, plausibility
P2A2D - fuel low pressure system, fuel pressure
These don't make sense to me.
data from http://www.bavauto.com/Assets/inst_pages/bas-sr300.pdf
P2B3C - Combustion misfire with cut-out cyl 8
P2B3A - Combustion misfire with cut-out cyl 6


Some of the upgrades the car has: VTT stage 1 turbos, AR Design catless downpipes, Fuel injectors where replaced by BMW Canada about 4 years ago, spark pluges & coils where replace with BMW parts last year along with turbos. Finally, I'm running Cobb Stage 2 Sport tune.

Has anyone ran into these codes?
What needs to be replaced / upgraded?

The car is primarily used as a weekend / track / autox toy.

Thank you
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      06-27-2018, 07:56 PM   #2
makethiscardriveable
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Fuel low pressure code could be a low pressure fuel sensor, this could be a high pressure fuel pump issue as well if its never been replaced before.
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      07-29-2018, 01:40 PM   #3
Kwroz21
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Thanks makethiscardriveable.

I recently replaced the LPFP and the Low Pressure Fuel Sensor as well. so far I've done some 50kms without any codes. About to do a track day & autox event.
Hopefully nothing comes up.
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