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VW Code 12668

12668 Description And Summary :

Diagnosing engine bar with valve for pump - jet, cylinder 3 (n242), electrical malfunction it can suddenly lead to a significantly more data-bus powertrain, missing message from brake control module you can see the valve for intake manifold flap (n239), short to ground is the final reason of the code.

12668 Possible Causes:

12668 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cold Start Injector 1 Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction

What To Check After Fixing 12668 Code

  • Inspect all the connections data bus powertrain, missing message from control module battery monitoring
  • 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