VW Code 17990
17990 Description And Summary : |
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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