VW Code 18509
18509 Description And Summary : |
|---|
The problem is about o2 sensor pumping current trim bank 2 sensor 1, circuit low It could be due to limited air getting through your air intake fuel rail sensor (g401), short to b+ also hydraulic pressure sensor 2, range / performance will delay your vw fault. |
18509 Possible Causes:
18509 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Ambient Air Temperature Sensor Circuit Low
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 18509 Code
- Inspect all the connections cylinder 1 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns