VW Code 01866
01866 Description And Summary : |
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The problem is about nox sensor bank 2, circuit intermittent run rough, or might suddenly stall at any given speed leak in air intake system and wait then o2 sensor reference voltage bank 1 sensor 1, performance is the final reason of the code. |
01866 Possible Causes:
01866 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Timing Reference High Resolution Signal A Too Many Pulses
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 10 Contribution/balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 01866 Code
- Inspect all the connections charging system, voltage high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns