Hi guys,
This is my first post. My fairly new 04 WRX Sport Wagon has been behaving a bit strange. The car runs slightly rough and has a tendency to sound a bit like a diesel- the motor just does not sound smooth. There is a very slight hesitation on acceleration( not talking about lag ).
The exhaust is a bit smoky and fuel consumption has gone up a bit. One would think the car runs a bit on the rich side.There are no significant drivability problems and the car runs reasonably well overall.
There are no codes and a trip to the dealer has solved absolutely nothing.
Several posts talk about flashing the ECU.
The car has only about 13K's on it.
Has anyone had similar experiences?
