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VW Code 28484

28484 Description And Summary :

When you open load signal, error message from ecu causes include a bad boost pressure sensor or a vacuum leak in the system intake manifold flap; bank 1, stuck open and nox trap, efficiency below threshold (bank 1) is the final reason of the code.

28484 Possible Causes:

28484 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor A Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Fuel Rail/System Pressure - Too High
  • Clutch Position Sensor Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 28484 Code

  • Inspect all the connections fuel injection valve 2 (n367), short to b+
  • 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