Hey everyone,
Long time lurker here. I recently picked up a new to me E92 coupe. Car is running MHD stage 2+, and meets all the criteria for associated parts (Intercooler, charge pipes, Catless_DPs, etc.). When I got the car, it has an BMS O2 simulator installed. I removed it and checked the pins according to a few threads and the install instructions from BMS. I installed the MHD tune to clear to CEL and I now get a shadow code for 2C7C for the secondary O2 signal. I am not finding a lot based on my research on if this a pin out issue, as in the PO installed the O2s backwards and I pinned it out properly, I pinned it out backwards, or the secondary O2s are just dead. Any suggestions where to start troubleshooting? Thank in advance.
Long time lurker here. I recently picked up a new to me E92 coupe. Car is running MHD stage 2+, and meets all the criteria for associated parts (Intercooler, charge pipes, Catless_DPs, etc.). When I got the car, it has an BMS O2 simulator installed. I removed it and checked the pins according to a few threads and the install instructions from BMS. I installed the MHD tune to clear to CEL and I now get a shadow code for 2C7C for the secondary O2 signal. I am not finding a lot based on my research on if this a pin out issue, as in the PO installed the O2s backwards and I pinned it out properly, I pinned it out backwards, or the secondary O2s are just dead. Any suggestions where to start troubleshooting? Thank in advance.
