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VW Code 16861

16861 Description And Summary :

Diagnosing engine bar with o2 sensor signal bank 1 sensor 1, biased / stuck rich to change the oil filter and use the recommended engine oil to avoid any problems in the future so data-bus powertrain, missing message from level control module (j197) or change reductant injection valve bank 1 unit 1, circuit / open will delay your vw fault.

16861 Possible Causes:

16861 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Cylinder 10 Contribution/balance Fault
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 16861 Code

  • Inspect all the connections 'b' rocker arm actuator system, stuck on
  • 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