I was driving in my 02 wrx back from VA and I live in PA and the check engine light came on last night and it feels like there is no boost pressure at all when i accelerate. My HKS EVC only reachs a max of 3.6psi when i give it full throttle, so i went and got a diag. this morning and the codes that i got where (P1090, P1091, p1093, P1088, P1089 which are all Manf. control and Fuel metering, Aux emission control) also the other codes where ( P0031- Bank 1 sensor 1 heater circuit low, P0245- wastegate solenoid A low, and last but not least P0546 Exhaust gas temp. sensor circuit high bank 1 sensor 1) if anyone can help me fix any of these isusse that would be wonderful. thanks for any help.