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DP install CEL
Hey guys,
sorry if this question has been asked, but i just installed my BMS downpipes today on my 2011 335is, installation went great. Car started like normal and ran great. I am running Cobb tune stage 2 sport. NO codes appeared after running for 15 miles. I then decided to try Stage 2 aggressive and i got a few codes stored. P2C8C-E-D-F. No CEL, the car still ran great everything was fine. I let the car sit for 3HRs, when i turned it on to move it, the CEL was on and i was reading codes P0031, P0051, P0037, P0057. Im pretty sure the O2 sensors were installed correctly and so far no performance issues... but is this normal after catless DPs? what should i look for? any help would be greatly appreciated
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