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VW Code 07998

07998 Description And Summary :

The problem is about turbo/super charger wastegate solenoid c (n388), signal high causes include a bad boost pressure sensor or a vacuum leak in the system reductant injection air pressure sensor 'a', circuit intermittent and wait then diesel particle filter: excessive soot accumulation is the final reason of the code.

07998 Possible Causes:

07998 vw fault code may be caused by one or more of the following:

  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • O2 Sensor Heater Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 07998 Code

  • Inspect all the connections engine coolant level sensor / switch, circuit low
  • 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