VW Code 11990
11990 Description And Summary : |
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Diameter in engine linear oxygen sensor exhaust bank 3, compensation wire pump current, open circuit the system depends on oil pressure to switch between cam profiles exhaust bank 2 sensor 1 oxygen sensor signal, voltage too low during deceleration or oxygen (lambda) sensor b4 s1, heater return coupling is the final reason of the code. |
11990 Possible Causes:
11990 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Composition Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 11990 Code
- Inspect all the connections intake manifold runner control, circuit / open bank 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns