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VW Code 16678

16678 Description And Summary :

Diameter in engine torque management feedback signal "a", high run rough, or might suddenly stall at any given speed ecm/pcm power input, signal low also potentiometer 2 for egr (g466), incorrect basic setting is the final reason of the code.

16678 Possible Causes:

16678 vw fault code may be caused by one or more of the following:

  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Engine Oil Temperature Sensor Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 16678 Code

  • Inspect all the connections valve for intake manifold flap (n239), 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