Hey guys tried to do a search but couldn't find anything that related to my situation. I just bought another iroc and the previous owner put in about 7 gallons of 87octane gas and the car is setup for 93. With that being said the car got spark knock when giving it gas off idle and it just fell on its face and died. I siphoned out all the gas and put in 93 and ran it for 15 mins after that the car still doesn't want to run when giving it gas while driving, but if i put it in neuteral it will rev up to 6K rpm with no hesitation. The spark knock comes intermittently when trying to drive the car. The car has 30lb injectors, aftermarket intake, jet stage 2 chip, 58mm tb, msd cap rotor wires. Why isn't the computer relearning itself. Any input would be helpful. thanks in advance
-tom

 

bump need some input please