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VW Code 16766

16766 Description And Summary :

Diameter in engine exhaust bank 4 oxygen sensor correction behind catalyst, rich control limit exceeded It could be due to limited air getting through your air intake exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean . So for next temperature sensors for drive cycle radiator exhaust (g382), signal too largely will delay your vw fault.

16766 Possible Causes:

16766 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Fuel Composition Sensor Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Cylinder 4 Contribution/Balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 16766 Code

  • Inspect all the connections reductant injection valve bank 2 unit 2, circuit 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