Re-Volt

hello all.. my MY06 STI has a K&N typhoon, hks evc, and hks exhaust. few weeks ago i felt a cut and the car is not pulling out and a check engine is on. pulled the error code turned to be P0112: Intake air temperature sensor circuit low input. went to the dealer and they cleared the error and told me it was over boost issue. the peak on evc was 1.39. i lowered it. last night same thing happened again under 1.2bar. now i am lost i dont know what is this error about or what is wrong with the car.

every help is highly appreciated. thank you in advance.