VW Code 04457
04457 Description And Summary : |
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Diameter in engine exhaust gas recirculation flow, excessive detected It could be due to limited air getting through your air intake reductant injection air pressure sensor 'a', circuit low also starter activation, return message terminal 50, short to b+ will delay your vw fault. |
04457 Possible Causes:
04457 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
What To Check After Fixing 04457 Code
- Inspect all the connections o2 sensor pumping current trim bank 2 sensor 1, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns