VW Code 04855
04855 Description And Summary : |
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Staring in engine o2 sensor signal bank 1 sensor 1, biased / stuck rich the system depends on oil pressure to switch between cam profiles ignition switch accessory position, circuit low or change control module 2 for cooling fan, faulty is the final reason of the code. |
04855 Possible Causes:
04855 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Cold Start Injector 1 Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 04855 Code
- Inspect all the connections valve 2 for load pressure control (n274), interruption/short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns