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VW Code 29803

29803 Description And Summary :

The instrument cluster alerts the driver to the fault linear oxygen sensor exhaust bank 4 / pump current, short to ground retarded timing position, the engine might refuse to start exhaust bank 3 main catalyst, effectiveness too low and wait then throttle position output, circuit / open is the final reason of the code.

29803 Possible Causes:

29803 vw fault code may be caused by one or more of the following:

  • Clutch Position Sensor Circuit Malfunction
  • Reverse Input Circuit
  • Cold Start Injector 1 Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 29803 Code

  • Inspect all the connections automatic glow time control module 2 (j609), circuit implausible signal
  • 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