Hello, I tuned my own 08 LNF about 6 years ago. I was running a dumb setup with an HKS BOV and the MAF was unplugged as a workaround suggested by the guy who taught me how to tune.
I recently have recirculated that BOV back into the intake so I can run the MAF again.
I flashed GMS1 tune (copied values over to my original base tune) and now the car is running like garbage.
1. I cannot go into boost, it'll cap out at 0 PSI on my mechanical gauge.
2. All fuel trims are pegged at -100 for LTFT (I have the purge valve disconnected) and the STFTs sit around -13 to -20 all the time.
3. Running the old tune and trying to adjust the MAF tables results in a massively unstable idle no matter what I do.
4. MAF is reading properly and all sensors as well. No boost leaks or mechanical issues, and the old tune with MAF unplugged still runs normally.
Any suggestions on what I can do?
dogshit1.hpl
base redbalt GMS1.hpt
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