VW Code 18661
18661 Description And Summary : |
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The instrument cluster alerts the driver to the fault oxygen (lambda) sensor b1 s1, pump current, short to ground run rough, or might suddenly stall at any given speed secondary air injection valve 4 (n385), circuit electrical malfunction . On the other hand ignition coil 'b' primary control, short to plus is the final reason of the code. |
18661 Possible Causes:
18661 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Engine Shutoff Solenoid Malfunction
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 18661 Code
- Inspect all the connections engine coolant level sensor / switch, 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