hwhat in the hell is going on????
hwhat in the hell is going on???? 2000 SS M6 LS1, had the car tuned after a cam no heads install...got deployed, car sat, battery died, added bigger TB and UD pullies, dynoed it today (chassis dyno) and it read 210 hp...it was dynoed before my deployment with 350+ on a roller dyno, shows it running LEEEEAAAAN...like scary 19+ on the AFR reading at 6000 rpm. has anyone had this happen, like an ECM that needs to relearn a tune but messes with the computer in the meantime? or any ideas at all, im open to suggestions. still running the stock injectors but am going to upgrade to 42 lbers to re-dyno tune it next week.
42 lb'ers sound big for a cam only car, but I guess they can;'t hurt.
From what I've learned....a tune can't go away by itself, or change by itself.
Are you getting any codes/ses lights?
.
From what I've learned....a tune can't go away by itself, or change by itself.
Are you getting any codes/ses lights?
.
im getting an SES, going to check that in a few hours, the only thing that changed was the TB and UD pullies, the battery went dead and the car sat for a few months like that until just recently.
have you noticed the car sounding different? you might have had a sticky lifter if it was sitting that long and cause the cam to get ground down.
