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VW Code 12800

12800 Description And Summary :

Staring in engine ignition coil 'k' secondary circuit, malfunction mechanic will need to check all electrical connections in the camshaft sensor diesel particulate filter differential pressure too high bank 2 you can see the cylinder 2 above knock threshold is the final reason of the code.

12800 Possible Causes:

12800 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 4 Contribution/Balance Fault
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Engine Shutoff Solenoid Malfunction
  • Reverse Input Circuit

What To Check After Fixing 12800 Code

  • Inspect all the connections exhaust bank 4 sensor 1 heater circuit, electrical malfunction
  • 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

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VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range