A few months ago I finally purchessed my dream car. Ive wanted a WRX since they were first released.
My problem is my check engine and traction control lights are on and my cruise control light is blinking. The car is bone stock although I purchased it used and found out that the previous owner may have had some kind of cold air intake on it but currently it has the stock airbox etc.
I think it may have something to do with the air sensor located on the airbox itself. When I bought the car I checked the air filter that was dirty and full of debris. I went out and bought a K&N airfilter to replace it and when I did the lights came on. I started to freak out but after needing to drive it to work it seemed to drive fine with no problems. After the car sat for 12 hours (my whole shift), I got into it, started her up and mysteriously the lights were off.
This continued until today (about 2 months) when the weather dropped 30 degrees and it started to rain. When I hopped in, to go to work I let it run for about 2-3 mins to warm it up (as I always do) and drove to work. When I got in it again later in the day the lights came back on .
My thought is that when the previous owner put on his cold air intake, or put it back on when he traded in the car, he must have somehow damaged it. Ive looked around and other people with Subarus had similar problems and when they took their cars to the dealerhips they could not pin point the problem and some of them replaced things like the the o2 sensor. Problem being most of them all had the problem come back to haunt them. Ive also read that resetting the ecu or re-flashing it didnít fix the problem either.
Anyone have the same problem or some insight on this?
Also since I bought the vehicle the idle is a little funky and it runs a bit rough (not too bad, but enough to mention) that normal?