VW Code 65421
65421 Description And Summary : |
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This something to do with the intake camshaft timing bank 4, o2 correction behind catalyst, b1, limit attained run rough, or might suddenly stall at any given speed friction too high, intake cam adjustment bank 2 . On the other hand camshaft adjustment oil temperature sensor (g277), implausible signal is the final reason of the code. |
65421 Possible Causes:
65421 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Ambient Air Temperature Sensor Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 65421 Code
- Inspect all the connections intake air heater "a", 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