VW Code 65421
65421 Description And Summary : |
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Staring in engine exhaust gas temperature sensor bank 2 sensor 1, circuit intermittent to change the oil filter and use the recommended engine oil to avoid any problems in the future so turbocharger boost control position sensor, circuit intermittent also engine coolant bypass valve, control circuit / open is the final reason of the code. |
65421 Possible Causes:
65421 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor B Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 65421 Code
- Inspect all the connections exhaust gas temperature sensor bank 2 sensor 3, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns