P0425 Volkswagen Catalyst Temperature Sensor Circuit Bank 1 Sensor 1 Possible causes – Faulty Catalyst Temperature Sensor– Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection Tech description As the code description implies the P0425 Volkswagen code means that the vehicle’s control module has detected that the three-way catalytic…
P0424 Volkswagen Heated Catalyst Temperature Below Threshold Bank 1
P0424 Volkswagen Heated Catalyst Temperature 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 P0424 Volkswagen code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as…
P0423 Volkswagen Heated Catalyst Efficiency Below Threshold Bank 1
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 Volkswagen code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as…
P0421 Volkswagen Warm Up Catalyst Efficiency Below Threshold Bank 1
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…
P0420 Volkswagen Catalyst System Efficiency Below Threshold Bank 1
P0420 Volkswagen Catalyst System 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 Volkswagen code means…
P041E Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Intermittent / Erratic
P041E Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Intermittent / Erratic OBD Code: System: Subsystem: P041E Volkswagen – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Intermittent / Erratic Location: Analysis: Possible Causes: Sensor B Periodically Unstable Circuit Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen…
P041D Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit High
P041D Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit High OBD Code: System: Subsystem: P041D Volkswagen – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit High Location: Analysis: Possible Causes: Sensor B End of Range – Circuit Higher Than Expected Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen…
P041C Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Low
P041C Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Low OBD Code: System: Subsystem: P041C Volkswagen – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Low Location: Analysis: Possible Causes: Sensor B End of Range – Circuit Lower Than Expected Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen…
P041B Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Range / Performance
P041B Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Range / Performance OBD Code: System: Subsystem: P041B Volkswagen – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Range / Performance Location: Analysis: Possible Causes: Sensor B Out of Expected Range Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen…
P041A Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit
P041A Volkswagen Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit OBD Code: System: Subsystem: P041A Volkswagen – (ASE) Powertrain Auxiliary Emission Controls Trouble Code Description: Exhaust Gas Recirculation (EGR) Temperature (Sensor B) Circuit Location: Analysis: Possible Causes: Sensor B Circuit Issue Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen Jetta,Volkswagen New Beetle,Volkswagen Passat,Volkswagen Routan,Volkswagen Tiguan,Volkswagen…
P0419 Volkswagen Secondary Air Injection System Relay B Circuit Malfunction
P0419 Volkswagen 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 What about the obd code? The DTC P0419 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired by…
P0418 Volkswagen Secondary Air Injection System Relay A Circuit Malfunction
P0418 Volkswagen Secondary Air Injection System Relay A Circuit Malfunction Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0418 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired by…
P0417 Volkswagen Secondary Air Injection System Switching Valve B Circuit Shorted
P0417 Volkswagen Secondary Air Injection System Switching Valve B Circuit Shorted Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0417 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired…
P0416 Volkswagen Secondary Air Injection System Switching Valve B Circuit Open
P0416 Volkswagen Secondary Air Injection System Switching Valve B Circuit Open Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0416 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired…
P0415 Volkswagen Secondary Air Injection System Switching Valve B Circuit Malfunction
P0415 Volkswagen Secondary Air Injection System Switching Valve B Circuit Malfunction Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0415 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired…
P0414 Volkswagen Secondary Air Injection System Switching Valve A Circuit Shorted
P0414 Volkswagen Secondary Air Injection System Switching Valve A Circuit Shorted Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0414 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired…
P0413 Volkswagen Secondary Air Injection System Switching Valve A Circuit Open
P0413 Volkswagen Secondary Air Injection System Switching Valve A Circuit Open Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0413 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired…
P0412 Volkswagen Secondary Air Injection Switchover Solenoid Circuit
P0412 Volkswagen Secondary Air Injection Switchover Solenoid Circuit Possible causes – Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection What about the obd code? The DTC P0412 Volkswagen is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM….
P0411 Volkswagen Secondary Air Injection System Insufficient Flow
P0411 Volkswagen Secondary Air Injection System Insufficient Flow Possible causes – Vacuum hoses damaged or pinched– Faulty Air Pump inoperative– Faulty Air Pump harness is open or shorted– Faulty Air Pump circuit poor electrical connection What about the obd code? The AIR system does not meet the expected flow rate during testing Symptoms – Engine…
P0410 Volkswagen Secondary Air Injection System Malfunction
P0410 Volkswagen Secondary Air Injection System Malfunction Possible causes – Faulty Vacuum hoses damaged– Faulty Air Pump inoperative– Air bypass solenoid harness is open or shorted– Air bypass solenoid circuit poor electrical connection– Air bypass solenoid leaking/blocked or stuck open/closed– Air diverter valve leaking/blocked or stuck open/closed What about the obd code? The secondary air…