FixVault

Monitor Strategy

MONITOR STRATEGY

Related DTCs P0420: Catalyst Deterioration
Required Sensors/Components (Main) TWC
Required Sensors/Components (Related) Air-Fuel Ratio (A/F) sensor, Heated Oxygen (HO2) sensor, Intake Air Temperature (IAT) sensor, Mass Air Flow (MAF) meter, Crankshaft Position (CKP) sensor, Engine Coolant Temperature (ECT) sensor
Frequency of Operation Once per driving cycle
Duration 20 seconds
MIL Operation 2 driving cycles
Sequence of Operation None