Hi guys, my 4e is giving me a hard time understanding what's wrong with it . I start up the engine, which is a standard one, and until it's still cold everything is fine but as the temperature starts to rise immediately when I rev it up to 3000 revs a knock sensor fault pops. And It is going lean when I'm going around fast with it and the boost won't kick in very soon ( my guess is it's going into safe mode). I changed the knock sensor, checked pipes for leaks, cleaned the throttle body, checked knock sensor wiring but still the problem persists...any good ideas ?... :/