Help with boost problem??
 

My '04 STI has 1400 miles and puts out .007 MPa under full accelleration. Is this right? I have a Perrin dp, AEM cai and aps BOV.

I dunno that sounds a little low, my Stock WRX puys out .1 at peak and then backs off a little to like .09 / .08 and I believe the STI turbo has slightly more boost than the Stock WRX...if I were you i would take the car back to the dealership and ask them to test the boost gauge....maybe they can replace it and see if that is better, and if that doesnt do it then go with the connections make sure all are tight and not cut/melted....lastly after that it may be a turbo problem but really the car is under warrenty let the dealership find the problem, if something is messed up let them pay/work on it...just an opinion in the end its all up to you

The ECU is probably pulling boost to compensate for the intake. Put the stock intake tubing back on and things should return to normal in a few days.

I think you are right..I'll put the stock air box on this weekend.

Hey BAN SUVS, Im a WRX noob, how does the ECU pull boost? or does it pull fuel?:confused: