Re: Don's 08 STI. STI Hatchback/Wagon or bust!
The car feels good. It seems the ecu is adjusting itself in a good way. I guess a bad O2 sensor will not throw a CEL specifying a bad O2 sensor. Good enough to not throw an O2 sensor related CEL, bad enough to make a car run poorly and throw a P0303 #3 misfire code.