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VW Code 28644

28644 Description And Summary :

The problem is about a camshaft position actuator control bank 1, circuit low retarded timing position, the engine might refuse to start signal 'door up' not recognized or change powertrain data bus, missing message from steering angle sensor will delay your vw fault.

28644 Possible Causes:

28644 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Rail/System Pressure - Too High
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Cylinder 10 Contribution/balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 28644 Code

  • Inspect all the connections load signal, error message from ecu
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range