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Home >> Honda >> 2021 >> Insight EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Advanced Diagnostics (1 Of 2) >> Advanced Diagnostics >> DTC P0420 >> Enable Conditions
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Enable Conditions

Condition Minimum Maximum
Elapsed time that secondary HO2S activity is not monitored after starting the engine 15 seconds -
Engine coolant temperature
[ECT Sensor 1]
156 deg.F (69 deg.C) -
Intake air temperature
[IAT Sensor (1)]
-13 deg.F (-25 deg.C) -
Estimated TWC temperature 1022 deg.F (550 deg.C) -
Vehicle speed
[Vehicle Speed]
30 mph (48 km/h) -
Fuel trim 0.69 1.47
Fuel feedback Closed loop at stoichiometric
Monitoring priority P0133
Other Has record of deceleration at least once
Cruise load or more

[ ]: HDS Parameter