VW Code 18490
18490 Description And Summary : |
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This code were stamped on VW Engine case signal for back-up lights, open retarded timing position, the engine might refuse to start exhaust gas temperature sensor, bank 2 sensor 5, circuit range / performance . On the other hand barometric pressure sensor 'a', circuit low is the final reason of the code. |
18490 Possible Causes:
18490 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 18490 Code
- Inspect all the connections secondary air injection system air flow/pressure sensor bank 2, 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