ss1275

so today when i pulled in the driveway and put the car in park, the car idle was crazy high .. it was at about 1500 so i popped the hood to check if my throttle was stuck and it looked fine.. also on the way home i noticed without even giving the car gas from a dead stop, it accelerated by itself and kept the rpms at about 1500.. just enough to have the car shift into second and stay at a low rpm in second gear.. anyone know what this could be ? .. any input will be greatly appreciated ... before this started i noticed that when i put the car in revers and let off the gas, the car would spurge and want to shut off.. i figured it was due to the cam and didnt pay any attention to it ....

BlackScreaminMachine

iTrader: (17)

With a cam, you need to have it tuned.

Is it a A4 or M6 car?? What cam also.

pheer

iTrader: (3)

i had the same problem, mine was due to a vacuum leak.... the throttle blade on my TB had the hole drilled which caused too much air getting in at idle, i swapped the stock blade in and it was fixed.... (now it doesnt get enough air because of the epoxy mod restricting the IAC -_-)

The Postman

iTrader: (44)

Depending on the miles you could also have a faulty idle air control valve.

dragonrage

You can try cleaning the IAC stuff with carb cleaner, but I'm gonna say vacuum leak as well.

ss1275

well thanks guys.. appreciate all the input.