VW Code 04857
04857 Description And Summary : |
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This code were stamped on VW Engine case motor for intake manifold flap (v157), open / short to ground retarded timing position, the engine might refuse to start reductant injection air pressure sensor 'a', circuit high or change motor for intake manifold flap (v157), malfunction will delay your vw fault. |
04857 Possible Causes:
04857 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)
- Fuel Rail/System Pressure - Too High
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Crankshaft Position Sensor A Circuit Low Input
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 04857 Code
- Inspect all the connections turbocharger speed sensor, circuit 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