Bmw E90 N43 318i Oxygen Sensor heating activation fault FIXED!
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- Опубликовано: 8 сен 2024
- I had the below persistent codes and after checking all the wiring and replacing the oxygen sensors I still had the engine management light on every third time starting the car.
002C9C ME: Oxygen sensor heating before catalytic converter, activation and
002C9E ME: Oxygen sensor heating after catalytic converter, activation fault
Using INPA I found a wiring diagram which shows there are 2 fuses relating to 02 sensor heating. Fuse 38 main 30 amp and fuse 11 mini 20amp. In my case fuse 11 was blown.
Can you tell please from where did you get this INPA version? I cannot find one working with N43 engine.
You say fuses i will check it again but they were all ok in the glove compartment. When i open the engine one it does not have any by the looks of it.
Hi, hope you ok. Could you help me please. I may have a similar problem ref to this video. I have 318i N43 2.0 petrol, replaced both sensors to oem Bosch. But engine management light still on. I've got diagnostics code of 2C9C with PO31 and PO37 ref to both sensors problem. Can't figure it out, I don't want to take to garage they charge arm and leg for tiny jobs these days. Please help. Thanks.
did u create new adaptations after changing sensors?
In the end I found the problem to be just the oxygen sensor heater fuse. I had used a fuse bridge to power my amp and this was taking power away from the oxygen sensor.