VW Code 04657
04657 Description And Summary : |
|---|
The problem is about valve for exhaust flap 2 (n322), short to b+ It could be due to limited air getting through your air intake air flow restriction / air leak between air filter and maf or change 'a' rocker arm actuator control, circuit / open is the final reason of the code. |
04657 Possible Causes:
04657 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 04657 Code
- Inspect all the connections data bus powertrain, implausible message of the a/c control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns