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VW Code 16391

16391 Description And Summary :

Diagnosing engine bar with control module for coolant fan 3 fan activation, short circuit It could be due to limited air getting through your air intake exhaust bank 3, probe 2 heating circuit of electrical errors and wait then outside temperature sensor 2 (g249), open to b+ will delay your vw fault.

16391 Possible Causes:

16391 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail/System Pressure - Too High
  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction

What To Check After Fixing 16391 Code

  • Inspect all the connections reductant temperature sensor, circuit range / performance
  • 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