SKipping under boost.

[PSINXS]

When i drive normal not bringing it into boost its fine. When i get on it, I can hear it in the exhaust skipping and sputtering. I check the plugs and cleaned them. COuld it be a coil problem? MY AFR was staying pretty constant in the rich area before it falls when it starts skipping. I need help and fast. I thank you allin advance.

[scttydb411]

how rich? do you have a wideband or narrowband on it? has it been dyno tuned?

[HiPSI]

could be coil... could be plugs.... could be just the plug gap... could be plug wires. real extreme case could be a lifted headgasket under boost only but that's not likely.

[PSINXS]

I fixed it saturday guys. Vacuum leak caused the problem. I talked to Tracy at HIn and they gonna get me tuned.