Description OBD-II Trouble Code Description for P0420 Alfa Romeo Catalyst System Efficiency Below Threshold What does this mean? OBD2 Code P0420 Alfa Romeo definition: The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate….
Tag: P0419
P0419 Acura Secondary Air Injection System Relay B Circuit Malfunction
Description OBD-II Trouble Code Description for P0420 Acura Catalyst System Efficiency Below Threshold What does this mean? OBD2 Code P0420 Acura definition: The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream…
P0419 TOYOTA Secondary Air Injection System Relay B Circuit Malfunction
Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the obd code mean? The DTC P0419 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM. Symptoms – Engine Light ON (or Service Engine…
P0419 LEXUS Secondary Air Injection System Relay B Circuit Malfunction
Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection When is the obd code mean? The DTC P0419 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM. Symptoms – Engine Light ON (or Service Engine…