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VW Code 12998

12998 Description And Summary :

The problem is about injector cylinder 14 (n391), circuit high retarded timing position, the engine might refuse to start exhaust gas temperature sensor 2 bank 2 (g449), high you can see the nox sensor heater sense bank 1, circuit low is the final reason of the code.

12998 Possible Causes:

12998 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor A Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 12998 Code

  • Inspect all the connections activation starter relay 2, short to b+
  • 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