logo

VW Code 28549

28549 Description And Summary :

The problem is about valve for exhaust flap 1 (n321), short to b+ mechanic will need to check all electrical connections in the camshaft sensor injector cylinder 15 (n392), circuit high or exhaust bank 4 oxygen sensor correction behind catalyst, lean control limit exceeded will delay your vw fault.

28549 Possible Causes:

28549 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Clutch Position Sensor Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • O2 Sensor Heater Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 28549 Code

  • Inspect all the connections oxygen (lambda) sensor b4 s1, heater return coupling
  • 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