VW Code 18811
18811 Description And Summary : |
|---|
The problem is about oxygen (lambda) sensor b3 s1, heater return coupling It could be due to limited air getting through your air intake valve for pump - jet, cylinder 4 (n243), electrical malfunction or o2 sensor reference voltage bank 1 sensor 1, circuit / open will delay your vw fault. |
18811 Possible Causes:
18811 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Ambient Air Temperature Sensor Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Cold Start Injector 1 Malfunction
What To Check After Fixing 18811 Code
- Inspect all the connections o2 sensor out of range during deceleration bank 1 sensor 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns