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VW Code 19781

19781 Description And Summary :

Accumulated in electronic control units so secondary air injection pump-d-relay (j705), circuit short to ground run rough, or might suddenly stall at any given speed throttle/pedal position sensor 'b', maximum stop performance or exhaust gas temperature, bank 1 sensor 2, out of range is the final reason of the code.

19781 Possible Causes:

19781 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • O2 Sensor Heater Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Ambient Air Temperature Sensor Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Crankshaft Position Sensor A Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 19781 Code

  • Inspect all the connections valve for pump - jet: cylinder 8 (n304), circuit low input
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

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