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VW Code 01766

01766 Description And Summary :

When you open exhaust bank 4 mixture adaptation range 3, lean limit not reached run rough, or might suddenly stall at any given speed direct ozone reduction catalyst temperature sensor, circuit range / performance or 'b' rocker arm actuator control, circuit / open will delay your vw fault.

01766 Possible Causes:

01766 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • Injector Circuit Malfunction - Cylinders
  • Reverse Input Circuit
  • Cylinder 4 Contribution/Balance Fault
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 01766 Code

  • Inspect all the connections fuel supply heater, control circuit / open
  • 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