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GAaaAR GAaaAR is offline
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Default Engine Malfunction Reduced Power warning - 10-12-2014, 03:48 PM

I've been getting this problem over the past 2 weeks where I get a Engine Malfunction warning and would stay on even if I turn off the car. Only when I turn if off for over 5 minutes that the warning will go away but reappear again sometime later. Scanned the car and got the following code... Does anyone know what they are and how to fix? Car is out of warranty...

Here are the codes:


2FCA - Error Will Not Cause a Warning light

2FDA - Error will not cause a warning light

2AAF - Fuel Pump Plausibility

2D20 - Accelerator Pedal Module, Pedal Sensor Plausibility between signal 1 and signal 2

2D1C - Accelerator pedal module, pedal sensor signal 2


I think its the last 2 codes most likely because it lists the mileage of when these codes appeared and the mileage closely matches when I got the warning.

Does anyone know?
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 10-13-2014, 08:35 AM

Looks like a gas pedal input issue.


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GAaaAR GAaaAR is offline
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Default 10-19-2014, 12:19 AM

Quote:
Originally Posted by Terry @ BMS
Looks like a gas pedal input issue.
Terry, any idea how I can fix it? Would it have anything to do with a tune? Car is out of warranty, so dont want to go to the stealership.
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Russell @ BMS's Avatar
Russell @ BMS Russell @ BMS is offline
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Default 10-19-2014, 08:46 AM

See if reconnecting the small gray sub connector will clear the code.


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Twinturbostroker Twinturbostroker is offline
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Default 11-17-2014, 05:17 PM

Any update on the solution for this problem?
my setup just generated same code.
2D1C
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Twinturbostroker Twinturbostroker is offline
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Default 11-24-2014, 11:41 AM

Well I'll follow up on my results.

Attempted restart 3 times no success.

Opted to drive the car in reduced power mode to see if bringing it up to temperature would help. Before driving it the dealer. Not really looking forward to what they have to say about the mods.
Although. After a brief warm up & clearing codes via JB4, the half power reduction warning indicator has cleared and the 335IS seems back to normal.

Had a few 1st - 4th pulls without incident and a few restarts.

Hopefully this was just a fluke incident.
Either way here are the fault codes it generated according to the JB4 reader.

2D1C
2F58
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jcy335xi jcy335xi is offline
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Default 04-15-2015, 01:35 PM

I've been having this 2D1C issue come up on and off for the last 6 months but today probably has been the worse experience. The only correlation I have is that whenever I hit a large bump or pot hole, my car would pop this error up and go into limp mode. Usually, I am able to toggle on auto clear and I can be on my way. However, no matter how many times I try to delete the code today, it comes back. Now I am stuck in limp mode...

I'm going to reseat all of the JB4 cables and see if that resolves my issue, hopefully that is it. If you guys have any other suggestions, please let me know. Thanks!
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Twinturbostroker Twinturbostroker is offline
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Default 04-16-2015, 06:12 PM

In my situation, the 2D1C cleared without incident the first two-three times it generated, although it ultimately regenerated about 2k later and could not be reset w/ JB4.

My code problem always seemed to appear after ambient temperature drop and could be cleared after vehicle warmed up.

Dealer replaced my accelerator pedal under warranty.

Haven't had any issues since.
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jcy335xi jcy335xi is offline
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Default 04-18-2015, 09:22 PM

I reseated the cables connected from the JB4 to the DME, power up the car and the code was gone. I'm thinking that my cables were loose enough that whenever I hit a hard bump, it causes it to error out ( signal lost?). Anyways, car came installed with the JB4 when I bought it and after today, I made sure the cables/jb4 unit are secured so hopefully I don't run into this issue in the future.
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Supahman04 Supahman04 is offline
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Default 12-16-2015, 09:34 AM

Glad I read this. I've been getting this code ever since I hit this huge pothole. Going to go attempt to check all of the JB4 cables now.
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lightning lightning is offline
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Default 04-19-2017, 06:37 AM

Any updates with regards to this?
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