Weird Vibration...

[aaronatstate]

So the red car has developed a strange vibration... Anytime I get above 4-6psi of boost it starts to vibrate. It's not speed dependent. When I free rev the engine it's fine. It's like it's doing it when it goes from closed loop to open loop. It's not the driveshaft. Checked that first.

If I'm careful to not build boors it's ok. All the inter cooler pipes are tight and on.

Was fine on the way to work... Not fine on the way home.

[CoopKill]

Bad plug? Could it be dropping a cylinder?

[starquest]

back from the dead thread.... the fix ??