Upgraded a 2001 PCM with the 2002 OS 12212156. Copied all my data over from the old tun to the new OS tune and saved the data. Wrote it to the PCM and took a test drive. Im seeing 1.8degree of KR and about 6% higher average STFT while tuning. MAF off tuning VE with STFT. Any suggestions?
Oh yeah and this is part throttle btw ... 2000RPMs