VW Code 04086
04086 Description And Summary : |
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The instrument cluster alerts the driver to the fault egr system, regulation range exceeded retarded timing position, the engine might refuse to start intake manifold runner control, basic setting not completed or reductant temperature sensor, circuit high will delay your vw fault. |
04086 Possible Causes:
04086 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Timing Reference High Resolution Signal A Too Many Pulses
- Turbocharger Boost Sensor A Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 04086 Code
- Inspect all the connections intake manifold runner control: open stop outside of valid range
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns