I recently purchased an 03 WRX. The car only hits 5lbs of boost. I've tried several driving styles and nothing is changing. (ie. letting the turbo spool before giving more gas and such). I checked all the lines I could see and they are all tight. However, the line off of the compressor housing has no restrictor pill in it, is this my problem?
I'm guessing the car was modified and put back to stock before I bought it. When the turbo spools the gauge goes to .05 then slightly goes back down and sits. The needle sweeps very quickly up and down.
Also, while driving the car home a CEL came on. The car has what I believe is a stock exhaust and some crappy orange intake. I'm hoping the ecu is set to stock right now but I have no idea. Is the intake what set it off? Also, the purge valve is very loud, almost sounds like a BOV... is the intake causing this too or is this a possible boost leak?
I pulled the code and it was something along the lines of "exhaust temperature is too hot".
I'm new to Subarus, and I used the search but failed to find a direct answer to my problem. Please help!