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VW Code 04401

04401 Description And Summary :

Diagnosing engine bar with relays for electrical fuel pump 2 (j49), short-circuit after pluses mechanic will need to check all electrical connections in the camshaft sensor intake manifold runner position sensor / switch, circuit low bank 2 you can see the valve for pump - jet: cylinder 9 (n305), regulation range exceeded will delay your vw fault.

04401 Possible Causes:

04401 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Shutoff Solenoid Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 04401 Code

  • Inspect all the connections supply voltage for fuel injector group a, 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