Description OBD-II Trouble Code Description for P0423 Alfa Romeo Heated Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0423 Alfa Romeo 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…
Tag: P0423
P0423 Acura Heated Catalyst Efficiency Below Threshold Bank 1
Description OBD-II Trouble Code Description for P0423 Acura Heated Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0423 Acura 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…
P0423 VOLKSWAGEN Heated Catalyst Efficiency Below Threshold Bank 1
Possible causes – Air leak before catalytic converter – Faulty oxygen sensor– Faulty Catalytic Converter Tech description As the code description implies the P0423 code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2)…
P0423 AUDI Heated Catalyst Efficiency Below Threshold Bank 1
Possible causes – Air leak before catalytic converter – Faulty oxygen sensor– Faulty Catalytic Converter Tech description As the code description implies the P0423 code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2)…