E67 SD has been running the SAME TUNE for over one year. No changes have been made. Recently, the vehicle runs perfect until about a 97 degree IAT temp is reached. This is usually about 30 minutes into a drive. It will bounce between running crazy rich +%30 and perfect operation intermittently. The O2 sensors are getting a real workout and they keep it running. Barely
I have gone as far as disabling all open loop corrections and running open loop full time. I have also put a new E67 computer in thinking it was sure to correct the problem. And same deal. Does anyone have experience with this crazy condition? Im tapped out. Thank you to all.
-Kyle