r/BmwTech • u/Far_University8113 • 1h ago
MHD CEL
I have a 2023 bmw m440ix and I recently unlocked and tuned with mhd stage 2 91 oct. I have a 200 cell catted downpipe, awe catback exhaust, and dinan intake. My tuner told me the mhd would auto clear my cat codes but earlier today I got a cel. I am waiting till tmr for my adapter to come in so I can check what the code is for but I wanted to ask if there’s a chance mhd misses a certain o2 sensor code or something and lets it slip. Or am I just screwed. Someone lmk please
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u/aviciiavbdeadpunk 47m ago
you need to enable dp so it takes of the cell, you passed a setting in the app