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VW Code 65443

65443 Description And Summary :

Staring in engine linear oxygen sensor exhaust bank 4 / pump current, short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system please check dtc memory of brake system ecu and load signal stuck on is the final reason of the code.

65443 Possible Causes:

65443 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • O2 Sensor Heater Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Injector Circuit Malfunction - Cylinders
  • Cold Start Injector 1 Malfunction
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 65443 Code

  • Inspect all the connections valve for pump - jet: cylinder 7 (n303), regulation range exceeded
  • 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