2001 Chevy Tahoe 5.3 4wd
I?ve already tuned the VE and Maf last year. Truck has been great. It now burns oil (valve stem seal) and killed the o2 sensors. Runs pig rich with them turned on. I don?t want to replace the sensors until we drop in a 6.0 in a few months. In the mean time it has to run reliable and well for work. Just shutting off LTFT and STFT will disable the high octane spark table right ? I dont want that. What so you all recommend?