Started last week my whipple equiped gt500 when driving developed a high idle speed , even when I press the clutch is revs 1500-3000!! I shut the car off and restart it right away and it goes away !!??????
You know what, as crazy as it sounds I think I over thighten the inlet tube to the throtle body causing a kinda distortion and probably letting air in ??!! I don't understand why shutting the engine off and restarting it right away cured the probleme??!! The tune is a Jon Lund , and worked great till I removed the throttle body inlet tube to cleane the oil in the throttle body ! ( I know I'm ordering a catch can ) Thanks 4 the quick replie