I just bought the car and the guy who built it never had it reprogrammed and no one in the area where I live has anything to do it i need somewhere to go somewhere around quincy Illinois?
So what is the build?
And why didn't he get a reprogram? This has been known since forever?
I have a fastchip.com program for my mods in 99... and I used lt1edit when I changed my gears from 3.23 to 3.73 in 2002/3.
Not sure what your issues are...until we know the build and what is happening...
No one can tune the computer to a baseline for unknown stuff.
GTP Stage II heads/Intake, Borla,CC 218/224,chromoly pushrods, CG 1.6 rr's,Hooker 1 5/8 shorties,RapidFires, MSD 8.5mm wires,4L60e (w/TransGo shift kit,deep pan,B&M cooler,Vigilante 2800),Spohn.net->(Torque Arm,Drive haft,LCAs,Panhard Bar,front/rear sway bars),Superior 3.73 gears,TA rear cover, Kenny Brown D.D. S.F. connectors,Morosso CAI,MSD coil+6AL,95 opti,TB bypass,BMR F.T. strut brace, Nitto front-450,rear-555r, Ed Wright reprogram w/ LT1 Edit,LT4 K.M.,52mm BBk,Hypertech 160