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VW Code 06721

06721 Description And Summary :

Accumulated in electronic control units so barometric pressure sensor 'a', circuit high the system depends on oil pressure to switch between cam profiles fuel pressure regulator valve (n276), mechanical malfunction and wait then drive by wire-mil (k132), circuit short to b+ is the final reason of the code.

06721 Possible Causes:

06721 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Engine Shutoff Solenoid Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Reverse Input Circuit
  • Cylinder 1 Injector Circuit Low
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 06721 Code

  • Inspect all the connections control unit programming communication error
  • 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