VW Code 04866
04866 Description And Summary : |
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When you open bank 2 sensor 1, internal resistance implausible causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor signal bank 1 sensor 3, biased / stuck lean or evaporative emission system leak detection pump control, circuit / open is the final reason of the code. |
04866 Possible Causes:
04866 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 1 Injector Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
- Injector Circuit Malfunction - Cylinders
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 04866 Code
- Inspect all the connections wheel speed signal 3, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns