codes 121 & 068 keep coming up (only after WOT 5000 rpm), also get rich bank 1 & 2 no matter what I do with inj slopes & such, LTFT will be stable for multiple drive cycles (+/- 5) then it seems after driving hard, the LTFT will all of a sudden get to -25 & start triggering CE light. Car is stock w/ D1 procharger (9psi) and 63.5 lb injectors. Little assistance would be appreciated. I changed all the anticipated airflow tables and inj scaling and (B4001 & B1213) to tune with the maf, but I can't seem to get it to be consistent. All seems fine til I get into heavy boost, then it gets mad. Do I need to do a 2 bar and virtual VE tune or can I get it properly done with the MAF?
thanks