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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 > o2 Sensor Codes



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      12-12-2018, 07:22 PM   #1
pysical
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o2 Sensor Codes

I get these randomly if I go WOT. Causes the car to run like crap until I stop and clear it out.

2C3D - DME: Oxygen sensor before catalytic converter: Line fault.
2C3E - DME: Oxygen sensor 2 before catalytic converter: Line fault.
2C7B - DME: Oxygen sensor after catalytic converter: Signal.
2C7C - DME: Oxygen sensor 2 after catalytic converter: Signal.
2CAA - DME: Oxygen sensor before catalytic converter: Temperature.
2CAB - DME: Oxygen sensor 2 before catalytic converter: Temperature.


Anyone know what the issue could be? They are all new 6 month old o2 sensors. I thought about testing with INPA but I don't know what I would be looking for.
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      12-12-2018, 10:32 PM   #2
Kevinl
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There is a fuse that has to do with the 02 sensors i would check that make sure no wires are rubbed through since there is codes for every sensor it looks like
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