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VW Code 14140

14140 Description And Summary :

Staring in engine secondary air injection system bank 2, high air flow it can suddenly lead to a significantly more o2 sensor signals swapped bank 1 sensor 2 / bank 1 sensor 3 and charge pressure fan relay (j712), short to ground+ is the final reason of the code.

14140 Possible Causes:

14140 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Cylinder 1 Injector Circuit Low
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor B Circuit Malfunction
  • Reverse Input Circuit

What To Check After Fixing 14140 Code

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