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VW Code 04055

04055 Description And Summary :

Diagnosing engine bar with accelerator pedal position sensor 1 (g79), power supply malfunction run rough, or might suddenly stall at any given speed auxiliary engine coolant (ec) pump relay (j496), open or short to ground also fuel pressure regulator valve (n276), mechanical malfunction will delay your vw fault.

04055 Possible Causes:

04055 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Turbocharger Boost Sensor A Circuit Low
  • Reverse Input Circuit
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • O2 Sensor Heater Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 04055 Code

  • Inspect all the connections motor for intake manifold flap (v157), 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