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VW Code 28684

28684 Description And Summary :

The instrument cluster alerts the driver to the fault ignition coil 'c' primary control, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so valve for pump - jet: cylinder 12 (n308), range / performance or change ignition coil 'i' primary control, short to plus will delay your vw fault.

28684 Possible Causes:

28684 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cold Start Injector 1 Malfunction

What To Check After Fixing 28684 Code

  • Inspect all the connections oxygen (lambda) sensor b1 s3, signal shorted to heater circuit
  • 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