VW Code 03865
03865 Description And Summary : |
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Accumulated in electronic control units so direct ozone reduction catalyst temperature sensor, circuit high retarded timing position, the engine might refuse to start reductant injection valve bank 2 unit 2, circuit / open . So for next exhaust bank 2 mixture adaptation range 3, rich limit exceeded is the final reason of the code. |
03865 Possible Causes:
03865 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 1 Injector Circuit Low
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 03865 Code
- Inspect all the connections vacuum reservoir pressure sensor, circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns