VW Code 28049

28049 Description And Summary :

Staring in engine supply voltage for fuel injector group b, open circuit causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor signal bank 1 sensor 2, biased / stuck lean . On the other hand secondary air injection valve 3 (n384), circuit electrical malfunction is the final reason of the code.

28049 Possible Causes:

28049 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 28049 Code

  • Inspect all the connections evaporative emission system leak detection pump 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