Mazda P0428 Catalyst Temperature Sensor High Input Bank 1 Sensor 1

Description OBD-II Trouble Code Description for P0428 Mazda Catalyst Temperature Sensor High What does this mean? OBD2 Code P0428 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most…

Mazda P0427 Catalyst Temperature Sensor Low Input Bank 1 Sensor 1

Description OBD-II Trouble Code Description for P0427 Mazda Catalyst Temperature Sensor Low What does this mean? OBD2 Code P0427 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most…

Mazda P0426 Catalyst Temperature Sensor Range/Performance Bank 1 Sensor 1

Description OBD-II Trouble Code Description for P0426 Mazda Catalyst Temperature Sensor Range/Performance What does this mean? OBD2 Code P0426 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most…

Mazda P0425 Catalyst Temperature Sensor Circuit Bank 1 Sensor 1

Description OBD-II Trouble Code Description for P0425 Mazda Catalyst Temperature Sensor What does this mean? OBD2 Code P0425 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important…

Mazda P0424 Heated Catalyst Temperature Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0424 Mazda Heated Catalyst Temperature Below Threshold What does this mean? OBD2 Code P0424 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the…

Mazda P0423 Heated Catalyst Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0423 Mazda Heated Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0423 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the…

Mazda P0421 Warm Up Catalyst Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0422 Mazda Main Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0422 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the…

Mazda P0420 Catalyst System Efficiency Below Threshold Bank 1

Description OBD-II Trouble Code Description for P0421 Mazda Warm Up Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0421 Mazda definition: Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs)….

Mazda P0419 Secondary Air Injection System Relay B Circuit Malfunction

Description OBD-II Trouble Code Description for P0420 Mazda Catalyst System Efficiency Below Threshold What does this mean? OBD2 Code P0420 Mazda 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…

Mazda P0418 Secondary Air Injection System Relay A Circuit Malfunction

Description OBD-II Trouble Code Description for P0419 Mazda Secondary Air Injection System Control “B” Circuit What does this mean? OBD2 Code P0419 Mazda definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one…