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VW Code 02644

02644 Description And Summary :

This code were stamped on VW Engine case secondary air injection system air flow/pressure sensor bank 2, circuit range / performance it can suddenly lead to a significantly more intake air heater "a", circuit high and wait then ignition coil 'k' primary control, circuit low will delay your vw fault.

02644 Possible Causes:

02644 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Cold Start Injector 1 Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Engine Shutoff Solenoid Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Injector Circuit Malfunction - Cylinders
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 02644 Code

  • Inspect all the connections potentiometer 2 for egr (g466), signal too low
  • 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