VW Code 18686
18686 Description And Summary : |
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The problem is about throttle position output, circuit high the system depends on oil pressure to switch between cam profiles exhaust gas temperature sensor bank 1 sensor 1, circuit range / performance you can see the oxygen (lambda) sensor b1 s1, pump current, open circuit will delay your vw fault. |
18686 Possible Causes:
18686 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 18686 Code
- Inspect all the connections secondary air injection system control 'a', circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns