Description OBD-II Trouble Code Description for P0422 Alfa Romeo Main Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0422 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: P0421
P0421 Acura Warm Up Catalyst Efficiency Below Threshold Bank 1
Description OBD-II Trouble Code Description for P0422 Acura Main Catalyst Efficiency Below Threshold What does this mean? OBD2 Code P0422 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…
P0421 VOLKSWAGEN Warm Up Catalyst Efficiency Below Threshold Bank 1
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected…
P0421 MITSUBISHI Warm Up Catalyst Efficiency Below Threshold- Cylinders 1-4
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected…
P0421 MAZDA Warm Up Catalyst System Right Efficiency Below Threshold
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected…
P0421 KIA Warm Up Catalyst Efficiency Below Threshold Bank 1
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected that the three-way catalytic…
P0421 HYUNDAI Warm Up Catalyst Efficiency Below Threshold Bank 1
Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected that the three-way…
P0421 AUDI Warm Up Catalyst Efficiency Below Threshold Bank 1
Possible causes – Warm Up Three Way Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected…