Trouble code P1133 means: HO2S insufficient switching
Trouble code P1345 means: Camshaft To Crankshaft Position Correlation Fault
Trouble code P0303 means:Cylinder 3 misfire detected Trouble code P0304 means:Cylinder 4 misfire detected
Trouble code P1614 means: NATS CHAIN OF IMMU-KEY
Trouble code P2106 means: Throttle actuator control (TAC) system-forced limited power mode
Trouble code P1810 means: ATF Pressure Manual Valve Position Switch Malfunction
Trouble code P0101 means: MAF Sensor Signal Range/Performance
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P0111 means: Intake Air Temperature Sensor 1 Circuit Range/Performance
Through the dipstick hole. Only way to do it. www.trailvoy.com Trailblazer and Envoy enthusiast forum!
Look in your owners manual.
Trouble code P0141 means: O2 Heater Circuit (Bank 1, Sensor 2)