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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > N46 Fault codes...



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      01-22-2023, 03:34 PM   #1
windyforce
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N46 Fault codes...

Greetings everyone,

This is my very first post, and asking for help or advice on how to get my car running up again.

I have the following codes:
2E1C - Generator, communication
28B4 - Valvetronic servomotor, sluggish movement
2847 - Valvetronic servomotor, electric
2B68 - Air-mass flow, plausibility
2B66 - Air-mass flow 2, plausibility
2863 - Valvetronic, power limitation

The issue happened very spontaneously, it was normal one moment I switched off the engine of my car after driving. Another moment I start the engine, fault code light up like a christmas tree.

Then I got my valvetronic servomotor replaced. No errors showed up except for a little twitch when car is on idle. The twitching is gone after driving for some 15 kilometres and the next day I got these problems showing up...

Engine fault! Reduced power
DSC Failure! Drive moderately
DBC Failure! Drive moderately
FTM system error

I have not scanned the car for the second time yet because the car workshop which I go to was closed for days.

Can anyone possibly know what happened to my car and how to remedy it?
Appreciate 0
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