VW Code 03857
03857 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 3/4 lambda probes after kat exchanges run rough, or might suddenly stall at any given speed exhaust gas temperature control circuit bank 4, out of range or change reductant injection valve bank 2 unit 2, circuit / open is the final reason of the code. |
03857 Possible Causes:
03857 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Oil Temperature Sensor Malfunction
- Reverse Input Circuit
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 03857 Code
- Inspect all the connections bank 2, system too rich at idle
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns