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VW Code 02721

02721 Description And Summary :

Diameter in engine bank 2, exhaust cam wave position sensor (g301) / crankshaft position sensor (g28), wrong allocation to change the oil filter and use the recommended engine oil to avoid any problems in the future so linear oxygen sensor exhaust bank 4 / reference voltage, short to ground or change load signal from alternator terminal df, open or short to b+ will delay your vw fault.

02721 Possible Causes:

02721 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Turbocharger Boost Sensor A Circuit Low
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 02721 Code

  • Inspect all the connections ignition coil 'c' 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