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VW Code 17990

17990 Description And Summary :

When you open transmission temperature control It could be due to limited air getting through your air intake mass-airflow sensor 3 (g456), signal to high . So for next cooling bypass valve 2, exhaust gas recirculation flow, electrical is the final reason of the code.

17990 Possible Causes:

17990 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cylinder 1 Injector Circuit Low
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 17990 Code

  • Inspect all the connections linear oxygen sensor exhaust bank 2 / common ground wire, open 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