Codes, looking for input

X5_montrealer · 05-08-2018, 08:50 AM

This is my first post here and hopefully it’s more helpful that confusing, for those down the line.

X5, 2011, n55 with 120000 kilometres. 30000 in the last year.
Always run on 91octane, oil changes at 8000 km

I’ve owned this vehicle for one year now and last week it stalled on me, while in park for roughly 3-4 minutes. Half check engine light that went away on startup. Runs fine ever since. I’ve noticed lately that upon startup in the morning, the exhaust valve is open and the truck is very loud and makes huge burbles at shifts.(I love it, but it’s not normal).

So, I scanned my truck with my icarly and got the following info:

Fault: mixture too lean
Code 002bc0

Fault: rail pressure sensor
Code 002bf4

Truck seems to run well and the codes haven’t come back since I cleared them.

What should be my next step?
Should I just replace the rail pressure sensor, since it’s cheap?

Thank you for any input based on experience or expert ease.
Bruce

Ps. Love the truck!

carbonM · 05-08-2018, 01:02 PM

Check out BMW N55 Diagnostic Fault Codes.pdf

X5_montrealer · 05-09-2018, 07:37 AM

Thank you for the reference PDF.

In support of the PDF, I guess I was just curious to see if anyone with a similar truck/engine combination has encountered this issue(stalling at idle with this code) and what their solution may have been.

Thanks!

carbonM · 05-09-2018, 09:59 AM

Just based on what you said I would check the injectors and high pressure fuel pump. Also I remember a lot of people talking about high pressure fuel pump failing but that might have been for the N54 motor.

If you have the ISTA+ software you could run tests on both injectors and pump. I would be leaning towards the pump.

05-08-2018, 08:50 AM	#1
X5_montrealer New Member 0 Rep 9 Posts Drives: 2011 x5 M-package Join Date: May 2017 Location: montreal iTrader: (0)	Codes, looking for input This is my first post here and hopefully it’s more helpful that confusing, for those down the line. X5, 2011, n55 with 120000 kilometres. 30000 in the last year. Always run on 91octane, oil changes at 8000 km I’ve owned this vehicle for one year now and last week it stalled on me, while in park for roughly 3-4 minutes. Half check engine light that went away on startup. Runs fine ever since. I’ve noticed lately that upon startup in the morning, the exhaust valve is open and the truck is very loud and makes huge burbles at shifts.(I love it, but it’s not normal). So, I scanned my truck with my icarly and got the following info: Fault: mixture too lean Code 002bc0 Fault: rail pressure sensor Code 002bf4 Truck seems to run well and the codes haven’t come back since I cleared them. What should be my next step? Should I just replace the rail pressure sensor, since it’s cheap? Thank you for any input based on experience or expert ease. Bruce Ps. Love the truck!
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05-08-2018, 01:02 PM	#2
carbonM Private 13 Rep 67 Posts Drives: 2011 E70 50iMt, 2011 e82 135i Join Date: Nov 2017 Location: Texas iTrader: (0)	Check out BMW N55 Diagnostic Fault Codes.pdf
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05-09-2018, 07:37 AM	#3
X5_montrealer New Member 0 Rep 9 Posts Drives: 2011 x5 M-package Join Date: May 2017 Location: montreal iTrader: (0)	Thank you for the reference PDF. In support of the PDF, I guess I was just curious to see if anyone with a similar truck/engine combination has encountered this issue(stalling at idle with this code) and what their solution may have been. Thanks!
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05-09-2018, 09:59 AM	#4
carbonM Private 13 Rep 67 Posts Drives: 2011 E70 50iMt, 2011 e82 135i Join Date: Nov 2017 Location: Texas iTrader: (0)	Just based on what you said I would check the injectors and high pressure fuel pump. Also I remember a lot of people talking about high pressure fuel pump failing but that might have been for the N54 motor. If you have the ISTA+ software you could run tests on both injectors and pump. I would be leaning towards the pump.
	Appreciate 0 Quote