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VW Code 16840

16840 Description And Summary :

When you open exhaust bank 4, sensor 1, tension too largely causes include a bad boost pressure sensor or a vacuum leak in the system throttle/fuel inhibit, circuit range / performance . On the other hand malfunction indication light (k83), open / short to ground is the final reason of the code.

16840 Possible Causes:

16840 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • Shift Solenoid E Performance or Stuck Off
  • Reverse Input Circuit
  • Engine Shutoff Solenoid Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 16840 Code

  • Inspect all the connections post catalyst fuel trim system, high limit
  • 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