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VW Code 01866

01866 Description And Summary :

The problem is about diesel particulate filter pressure sensor 'a', circuit it can suddenly lead to a significantly more intake manifold runner control, circuit low bank 2 or data bus powertrain, implausible message of the steering angle is the final reason of the code.

01866 Possible Causes:

01866 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 1 Injector Circuit Low
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 01866 Code

  • Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448), low
  • 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