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VW Code 04942

04942 Description And Summary :

Staring in engine valve for pump - jet: cylinder 12 (n308), range / performance retarded timing position, the engine might refuse to start data bus engine/engine, missing message from ecu 1 you can see the secondary air injection valve 3 (n384), circuit electrical malfunction is the final reason of the code.

04942 Possible Causes:

04942 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Cold Start Injector 1 Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Reverse Input Circuit

What To Check After Fixing 04942 Code

  • Inspect all the connections glow plug / heater indicator (k29), circuit 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