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VW Code 28949

28949 Description And Summary :

Diameter in engine ignition switch run position, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor signal bank 2 sensor 3, biased / stuck lean and change-over valve for intake manifold flap 2, performance or stuck off is the final reason of the code.

28949 Possible Causes:

28949 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Injector Circuit Malfunction - Cylinders
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 28949 Code

  • Inspect all the connections fuel mixture control adjustment range 2, lower limit not reached
  • 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