Question about 2002 Audi TT
I have a 225 tt coupe with an apr dv installed, recently when i hit the gas firmly there is a hissing sound until i let off the gas. I switched back to the stock dv with the same result,
Either one of your valves isn't reconnected/reassembled properly or something else came apart . . . the procedures below will help you locate the leak which is a useful place to start.
Looking under the front bumper there is an intake air line that has two rubber couplers - one on either end. I'd check those as they are attached with simple hose clamps that can easily come off. Of course check your air filter box - it's remarkably easy to put it back together slightly out of kilter - and you'll lose your boost there too. If you are daring and have a friend you trust dearly to "drive":
1: Chock the backside of the rear wheels with real wheel chocks.
2: Set ebrake firmly.
3: Open the hood and start the car.
4: Put into reverse and "load" the engine by applying some throttle, some clutch, and as much brake as possible. The car should not move. The load should jump up your boost.
5: At the same time as #4, somebody should inspect under the hood for escaping boost. It should be quite obvious.
Posted on Nov 22, 2008
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