Questions & Answers for: Subaru Impreza WRX STi turbo over boost

turbo dont boost my turbo doesnt kick in feels like not enough boost. any iseas? Check the pipes from the turbo to the intercooler and the intercooler to the inlet manifold, one if the hoses maybe not

...boost over 5psi? I have just replaced the motor in my 1998 WRX but it seems to be lacking in power. The turbo is still the original from the old motor and use to go fine and appears sweet. I am ...

my 2006 sti is throwing codes 0011, and 0021, what i was wondering is the turbo is boosting a max psi but it sounds like the waste gate is stuck open do these codes have anything to do with that? ...

...on due to this. sounds like the rev limiter is kicking in to keep the engine from over rev damage, there should be a way to get the limiter disabled or perhaps get the turbo building boost

...too. Just so you know you can't use platnum plugs on a compressed turbo motor, they won't spark right under boost.  Try using copper plugs they work better for forced induced

...boost leak. If the car isn't boosting there are several hoses you can check; the turbo inlet hose is where is start. However you could also have a leaking up pipe or headers; the possibilities are ...