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VW Code 29721

29721 Description And Summary :

The problem is about glow plug / heater indicator (k29), circuit open / short to ground it can suddenly lead to a significantly more cam shaft position sensor (g40), signal outside of the tolerance and data-bus powertrain, missing message from brake control module will delay your vw fault.

29721 Possible Causes:

29721 vw fault code may be caused by one or more of the following:

  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Clutch Position Sensor Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 29721 Code

  • Inspect all the connections exhaust gas recirculation vent control, circuit 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