Inspection/Maintenance System DTCS: Description
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The following DTCs are required to set system status to YES:
Catalyst System
- P0420 - Catalyst System Low Efficiency
EVAP System
- P0440 - EVAP System
- P0442 - EVAP System - Small Leak Detected
- P0446 - EVAP Canister Vent Blocked
- P1441 - EVAP System Flow During Non-Purge
Oxygen Sensor System
- P0133 - HO2S Slow Response
- P0140 - HO2S Circuit Insufficient Activity (Bank1; Sensor 2)
- P1133 - HO2S Insufficient Switching (Bank 1; Sensor 1)
Oxygen Sensor Heater System
- P0141 - HO2S Heater Performance (Bank 1; Sensor 2)
Diagnose affected DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .