D
Da Hawaiian Punch
Guest
Aloha once again! Yes you guessed it... its Double Clutch with what seems to be a never ending saga of Questions to C-4/5 specailist!! Heres this weeks question.... why does my car (C-4 91 L-98) ping like as if the timing was off or as if it has a case of bad gas?....kinda Like I do evey so often. Only when the air conditioner is on and the temperture on the motor is up slightly, about what it would be if the air con. was off, and with a stock thermostat, about mid range on the temp gauge, on the, in car display dash. I do have a 165 thermo. inside, along with the Ed wright race chip. I also have done all the usual common mods every body does to there vette. The timming is set at 6 deg. Should I back the timming off even more? I only use the good stuff when I put gas in the car (Shell, Cheveron, Union 76.) In that order of choices. Mahalo again!!