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VW Code 01040

01040 Description And Summary :

This code were stamped on VW Engine case exhaust bank 4 mixture adaptation range 3, rich limit exceeded it can suddenly lead to a significantly more valve for pump - jet, cylinder 2 (n241), electrical malfunction or change accelerator pedal position sensor 1 (g79), power supply malfunction will delay your vw fault.

01040 Possible Causes:

01040 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 01040 Code

  • Inspect all the connections o2 sensor negative current control bank 2 sensor 1, circuit / open
  • 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