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VW Code 03766

03766 Description And Summary :

Diagnosing engine bar with linear oxygen sensor exhaust bank 2, compensation wire pump current, open circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so bank 4, o2 correction behind catalyst, b1, limit attained or change glow plug/heater relay 2 circuit, open or short to ground will delay your vw fault.

03766 Possible Causes:

03766 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 03766 Code

  • Inspect all the connections malfunction indication light (k83), short to b+
  • 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