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VW Code 12746

12746 Description And Summary :

When you open ignition coil 'a' primary control, circuit low mechanic will need to check all electrical connections in the camshaft sensor valve for pump - jet: cylinder 9 (n305), circuit low input also exhaust bank 1 mixture adaptation range 3, rich limit exceeded will delay your vw fault.

12746 Possible Causes:

12746 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Cold Start Injector 1 Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Fuel Rail/System Pressure - Too High
  • Cylinder 1 Injector Circuit Low
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 12746 Code

  • Inspect all the connections water in fuel sensor, circuit range / performance
  • 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