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VW Code 19678

19678 Description And Summary :

The problem is about oxygen (lambda) sensor b1 s3, signal shorted to heater circuit retarded timing position, the engine might refuse to start throttle/pedal position sensor 'a', maximum stop performance you can see the oxygen (lambda) sensor b2 s1, pump current, short to ground will delay your vw fault.

19678 Possible Causes:

19678 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Fuel Composition Sensor Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 19678 Code

  • Inspect all the connections pre-catalyst exhaust bank 3 effect too small
  • 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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