VW Code 29721
29721 Description And Summary : |
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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