Evaporative Emissions System: Testing and Inspection

Diagnosis

^ The EVAP system can be diagnosed by using EVAP Control System Diagnosis 2.2L.

^ EVAP canister purge valve operation is covered in Evaporative Emissions System and diagnosed in DTCs P0440, P0446, and P1441.

^ EVAP vent solenoid operation is covered in Evaporative Emissions System and diagnosed in DTCs P0440, P0442, and P0446.

^ Fuel tank pressure sensor operation is covered in Evaporative Emissions System and diagnosed in DTCs P0440, P0442, P0446, P1441 and Evaporative Emission System Check.

^ A open or shorted circuit in the EVAP canister purge valve and EVAP vent solenoid can also be diagnosed in PCM Outputs Diagnosis 2.2L.