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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > 335 CEL when releasing gas pedal



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      02-04-2011, 01:50 PM   #1
slowSwede
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335 CEL when releasing gas pedal

Hello.

During the last couple of days I drove my 335 about 1 500 kms.
I had a period of roughly 100 kms where the CEL showed up, I just turned the car on and off on the highway since it got annoying.
It was only when I let go of the gas pedal rolling forward in gear that the CEL showed up. Never during WOT or cruising, only when I let go of the pedal.

I haven't gotten around to check codes with the BT cable but will tomorrow.

Anyone had the same symptom or care to take a wild guess?

Beer time in Sweden!!!
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      02-04-2011, 03:55 PM   #2
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I wonder if this could happen to e92 328's as well..
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      02-12-2011, 01:12 PM   #3
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Tomorrow turned into weeks....
Can anycode get something decent out of the below codes?
Thanks beforehand for any and all replies.

Current Fault Codes

2E8E:
2E8E Intelligent battery sensor, communication
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

Freeze Frame Information
Event 1Odometer 47128kms 29283miles
status motor control 2,00 0-n
ambient temperature 12,75 °C
battery voltage measured by IBS intelligent battery sensor 14,00 -
voltage Kl. 87 13,71 V

Event 2Odometer 47136kms 29288miles
status motor control 2,00 0-n
ambient temperature 3,75 °C
battery voltage measured by IBS intelligent battery sensor 14,00 -
voltage Kl. 87 14,12 V

Event 3Odometer 51352kms 31908miles
status motor control 0,00 0-n
ambient temperature -2,25 °C
battery voltage measured by IBS intelligent battery sensor 14,00 -
voltage Kl. 87 11,58 V



2C7B:
2C7B Lambda probe behind catalytic converter, signal
Error will cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1Odometer 47488kms 29507miles
exhaust fume temperature behind catalytic converter bank 1 640,00 °C
resistor Lambda probe behind catalytic converter bank 1 256,00 ohm
voltage Lambda probe behind catalytic converter bank 1 0,39 V
voltage Lambda probe in front of catalytic converter bank 1 3,20 V

Event 2Odometer 48280kms 29999miles
exhaust fume temperature behind catalytic converter bank 1 608,00 °C
resistor Lambda probe behind catalytic converter bank 1 256,00 ohm
voltage Lambda probe behind catalytic converter bank 1 0,29 V
voltage Lambda probe in front of catalytic converter bank 1 3,16 V

Event 3Odometer 49504kms 30760miles
exhaust fume temperature behind catalytic converter bank 1 608,00 °C
resistor Lambda probe behind catalytic converter bank 1 256,00 ohm
voltage Lambda probe behind catalytic converter bank 1 0,53 V
voltage Lambda probe in front of catalytic converter bank 1 3,24 V



2D1B:
2D1B Accelerator pedal module, pedal sensor signal 1
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1Odometer 48992kms 30442miles
voltage pedal sensor 1 4,96 V
voltage pedal sensor 2 0,35 V
supply Fahrtwertgeber 1 4,96 V
voltage Kl. 87 14,52 V

Event 2Odometer 49024kms 30462miles
voltage pedal sensor 1 4,96 V
voltage pedal sensor 2 0,70 V
supply Fahrtwertgeber 1 4,96 V
voltage Kl. 87 14,32 V

Event 3Odometer 50936kms 31650miles
voltage pedal sensor 1 4,96 V
voltage pedal sensor 2 0,68 V
supply Fahrtwertgeber 1 4,96 V
voltage Kl. 87 13,91 V



2D20:
2D20 Accelerator pedal module, pedal sensor, plausibility between signal 1 and signal 2
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1Odometer 50904kms 31630miles
voltage pedal sensor 1 1,25 V
voltage pedal sensor 2 0,35 V
supply Fahrtwertgeber 1 4,96 V
accelerator pedal value 0,00 %

Event 2Odometer 50904kms 31630miles
voltage pedal sensor 1 1,21 V
voltage pedal sensor 2 0,35 V
supply Fahrtwertgeber 1 4,96 V
accelerator pedal value 0,00 %

Event 3Odometer 51184kms 31804miles
voltage pedal sensor 1 1,23 V
voltage pedal sensor 2 0,35 V
supply Fahrtwertgeber 1 4,96 V
accelerator pedal value 0,00 %
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      02-12-2011, 02:09 PM   #4
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2C7B:
2C7B Lambda probe behind catalytic converter, signal
Error will cause a warning light
Error is not currently present
Test conditions have been completed

Assuming there's no known software updated for this specific fault (I don't think so) You're probably looking at a defective post cat, bank 1 (cylinders 1-3) 02 sensor. Exhaust modifications/leaks can cause post 02 faults/failure, be advised.

Since it's a "signal" fault, this would indicate there is a problem with the actual sensor/wiring as opposed to the sensor detecting another problem with say, the catalytic converter.
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      02-12-2011, 02:45 PM   #5
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Thanks for the reply Infpb22!

I've had the below error popping up since 36 000 kms.
2D1B Accelerator pedal module, pedal sensor signal 1
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

And the dealership can't figure out what's wrong with it, they have changed the throttle housing at my expense since I was out of warranty when it started happening...

According to you, shoud I change the O2 sensor or is there another way?

Cheers!
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      04-30-2011, 03:55 AM   #6
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It seems the problem for the accelerator pedal module was cable 7 in the grey subconnector.
Slot 6 and 7 in the small black subconnector seemed like they were glitching so I changed them as well. They could have been the cause of the lambda error (I' guessing here).

Now, I just did this yesterday so perhaps the problem hasn't been solved. If I don't post back here, that was the problem. Which currently seems very probable.
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      01-25-2013, 12:42 PM   #7
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i am getting the 2d1b fault code. Do you know how you fixed that?
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      01-26-2013, 06:09 AM   #8
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Quote:
Originally Posted by xnfsx View Post
i am getting the 2d1b fault code. Do you know how you fixed that?
It was cable 7 in the grey subconnector in the DME/ECU that triggered the 2d1b. You have to get to the DME and search out the cable, disconnect it from the subconnector and by hand sliding it on to one of the pins in the DME. If you have wiggle room once it's slid it place, that's your problem.
And before digging down to the DME, did you have the "Short circuit or signal interruption" in your code? Without that part I wouldn't bother looking for bad connections, as it was in my case.

My first step was to switch the accelerator pedal module with another 3-series I have. But that wasn't it, in my case.

If you get the code after driving until the engine is warm, park the car for say 20-40 minutes, then restarting it to have the CEL go off...or it goes off when you drive on uneven surfaces...I'd put my money on a bad connection.

Cheers!
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      01-27-2013, 10:10 AM   #9
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do u have an n55?
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      01-27-2013, 02:03 PM   #10
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Quote:
Originally Posted by xnfsx View Post
do u have an n55?
N54.
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