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VW Code 12198

12198 Description And Summary :

The problem is about exhaust gas temperature sensor, bank 2 sensor 5, circuit / open to change the oil filter and use the recommended engine oil to avoid any problems in the future so fuel pump circuit, electrical malfunction . So for next please check dtc memory of adr control module is the final reason of the code.

12198 Possible Causes:

12198 vw fault code may be caused by one or more of the following:

  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Reverse Input Circuit
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 12198 Code

  • Inspect all the connections oxygen sensor b1 s1: heating circuit regulation at upper limit, upper limit exceeded
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

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