04-21-2006, 08:26 PM
The reason that the engine noise goes away is that the catalytic converter is getting coated with soot from the over rich mixture. As it plugs up it creates more backpressure and the noise goes away. (kidding?)
Lets look at the syptoms of the turbo motor: louder, less power, more revs needed before it warms up. Maybe the boost is being limited until it warms up. Without as much boost the engine needs more revs to generate the same power. Less boost means the turbo is restricting the exhaust less and it is louder.
At least you are not having battery problems with this car.
Lets look at the syptoms of the turbo motor: louder, less power, more revs needed before it warms up. Maybe the boost is being limited until it warms up. Without as much boost the engine needs more revs to generate the same power. Less boost means the turbo is restricting the exhaust less and it is louder.
At least you are not having battery problems with this car.