I used to get 2CA2 AND 2CA3 codes on my N46B20 e90 so I changed both pre cat oxygen sensors (it was a lot easier than I expected).
Now with the new sensors I don't get those codes any more but I get couple of new codes. I'm getting 2C45 and 2C46. Also sometimes getting 2D11 and 2D12. Never used to get these codes before replacing the sensors
While I was replacing the pre cat sensors, I unplugged the post cat ones and gave the plugs a clean with contact cleaner
The new sensors were Bosch ones
Anyone had similar issues? Any help is appropriated
Thanks
Hello,
I have the same issue with my E90, 318i and I can't figure out where is the air leak coming from, did you managed to find the problem?
E90 oxygen sensor issues
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Hello,
I have the same issue with my E90, 318i and I can't figure out where is the air leak coming from, did you managed to find the problem?