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Home >> Toyota >> 2007 >> Prius Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) >> Monitor Strategy
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Monitor Strategy

MONITOR STRATEGY

Related DTCs P0420: Bank 1 catalyst is deteriorated
Required sensors/components Main:
A/F sensor, heated oxygen sensor
Related:
Mass airflow meter, engine coolant temperature sensor, engine speed sensor, intake air temperature sensor
Frequency of operation Once per driving cycle
Duration 30 seconds
MIL operation 2 driving cycles
Sequence of operation None
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