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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Codes and rough idle



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      07-20-2016, 03:57 PM   #1
tquinland
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Codes and rough idle

So I installed my jb4 yesterday and now I'm having a rough idle where it almost dies when i stop and I've got some codes:

2F6C Exhaust fumeflap, input signal
2C77 Lambda probe behind catalytic converter, signal
2C78 Lambda probe behind catalytic converter 2, signal
2C3D Lambda probe in front of catalytic converter, control failure

Thinking maybe bad o2 sensors?
Car is completely stock n54 except the jb4 and exhaust flap always open mod

Last edited by tquinland; 07-20-2016 at 04:09 PM..
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      07-20-2016, 04:36 PM   #2
ferocity02
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Check your install. Make sure none of the DME pins got pushed into the DME when you plugged in the JB4.
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      07-20-2016, 07:35 PM   #3
tquinland
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Originally Posted by ferocity02 View Post
Check your install. Make sure none of the DME pins got pushed into the DME when you plugged in the JB4.
Sorry, what do you mean by that? Don't I want the DME pins in the DME?
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      07-20-2016, 07:39 PM   #4
GATORB8
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Originally Posted by tquinland View Post
Sorry, what do you mean by that? Don't I want the DME pins in the DME?
He means the pins got damaged, bent or actually pushed into the module.
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      07-20-2016, 11:06 PM   #5
tquinland
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Originally Posted by GATORB8 View Post
He means the pins got damaged, bent or actually pushed into the module.
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