Honda - OBD Code Lookup

P0420 Honda

Catalyst System Efficiency Below Threshold Bank 1

Catalyst System Efficiency Below Threshold Bank 2

Exhaust Gas Recirculation Insufficient Flow

Exhaust Gas Recirculation Valve Circuit Range/Performance

Crankshaft Position Sensor ‘B’ Intermittent Interruption

Exhaust Gas Recirculation System Leak Detected

Camshaft Position Sensor ‘B’ No Signal

Camshaft Position Sensor ‘B’ Circuit Intermittent

Crankshaft Position Sensor ‘B’ No Signal

Ignition Coil 5 Circuit Malfunction