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      01-24-2017, 01:37 AM   #1
Screaper
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BMW 135i N55 E82 Mysterious problem

Hello everybody,

I currently have a problem with my 135i. I have a DP, CP and JB4.
Everything runs fine except that I get a CEL every now and then.
The car gives me these codes:

2c6f
2c58
281A

I already replaced the TMAP sensor on the BMS chargepipe.
The half engine light goes away when i disconnect the battery ( and reconnect it later obviously ).

I am all out of ideas, does someone here know the solution?

Thank you!
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      03-08-2017, 10:48 PM   #2
one3five+
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Thread bump, having the same issue. Did you ever get it resolved?
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      03-09-2017, 01:22 PM   #3
2PUTT
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2C6F = Boost pressure sensor, electrical: Short circuit to B+
2C58 = Charge-air pressure control, deactivation: charge-air pressure buildup disabled
281A = Absolute pressure sensor, intake manifold, electrical: short circuit to positive

Possible bad JB4 wiring harness/connection.

http://www.e90post.com/forums/showthread.php?t=1225311
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      03-10-2017, 09:41 PM   #4
one3five+
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Quote:
Originally Posted by 2PUTT View Post
2C6F = Boost pressure sensor, electrical: Short circuit to B+
2C58 = Charge-air pressure control, deactivation: charge-air pressure buildup disabled
281A = Absolute pressure sensor, intake manifold, electrical: short circuit to positive

Possible bad JB4 wiring harness/connection.

http://www.e90post.com/forums/showthread.php?t=1225311
Thank you!
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      07-28-2017, 04:17 PM   #5
Mean E92
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Hello!!!!

I have an E92 335i with the N55 showing a 2C6F code. I've replaced the Tmap but still no luck. What can I do to fix this? Thanks.
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