Just picked this car up for my little brother today.
Has 140k miles
All stock, had code for missfire cyl 8 and 7. I put new plugs in it and cleared code car idle fine now.
took it for a drive and it fell on its face. give it gas and it sputters doesnt want to go. No codes are coming up. Maybe cats are bad? here is data I took while car was parked little rev. Please help before I give him a broke ls1 for his birthday lol....
Thanks Guys.