VW Code 65521
65521 Description And Summary : |
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When you open injector cylinder 15 (n392), circuit low run rough, or might suddenly stall at any given speed secondary air injection valve 3 (n384), circuit short to ground also heater regulation, implausible signal is the final reason of the code. |
65521 Possible Causes:
65521 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 65521 Code
- Inspect all the connections engine coolant level sensor / switch, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns