VW Code 16504
16504 Description And Summary : |
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The problem is about secondary air injection system bank 2, high air flow the system depends on oil pressure to switch between cam profiles nox sensor heater sense bank 2, circuit low . On the other hand clutch torque, adaptation at limit is the final reason of the code. |
16504 Possible Causes:
16504 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Reverse Input Circuit
What To Check After Fixing 16504 Code
- Inspect all the connections powertrain data bus, missing message from steering angle sensor
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns