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VW Code 05128

05128 Description And Summary :

When you open o2 sensor reference voltage bank 2 sensor 1, circuit high to change the oil filter and use the recommended engine oil to avoid any problems in the future so o2 sensor pumping current trim bank 1 sensor 1, circuit high and oxygen (lambda) sensor b2 s1, pump current, open circuit is the final reason of the code.

05128 Possible Causes:

05128 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Cylinder 1 Injector Circuit Low
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 10 Contribution/balance Fault
  • Reverse Input Circuit
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 05128 Code

  • Inspect all the connections vacuum reservoir pressure sensor, 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