BMW 3-Series (E90 E92) Forum - View Single Post - Possible $5 fix for post-cat error codes on catless cars

bluesy_cube · 12-11-2019, 01:01 PM

If you are only worried about the CEL, MHD or JB4 will take care of it as I assume the reason for new DP is for stage 2 tune anyways.
If it is because of the car inspection, extended o2 sensor MIGHT help. There are mixed reviews about using it.

12-11-2019, 01:01 PM	#3
bluesy_cube Private 23 Rep 99 Posts Drives: 2015 F22 M235i xDrive Join Date: Aug 2018 Location: Vancouver, BC iTrader: (0)	If you are only worried about the CEL, MHD or JB4 will take care of it as I assume the reason for new DP is for stage 2 tune anyways. If it is because of the car inspection, extended o2 sensor MIGHT help. There are mixed reviews about using it.
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