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VW Code 29003

29003 Description And Summary :

The problem is about linear oxygen sensor exhaust bank 2 / common ground wire, short to ground retarded timing position, the engine might refuse to start power supply, voltage high voltage . So for next activation 2-unit injector valve, electrical malfunction is the final reason of the code.

29003 Possible Causes:

29003 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Injector Circuit Malfunction - Cylinders
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Rail/System Pressure - Too High
  • Engine Oil Temperature Sensor Malfunction
  • Cylinder 1 Injector Circuit Low
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 29003 Code

  • Inspect all the connections ignition coil 'e' secondary circuit, malfunction
  • 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