VW Code 04257
04257 Description And Summary : |
|---|
Staring in engine pre-catalyst exhaust bank 4 effect too small mechanic will need to check all electrical connections in the camshaft sensor exhaust bank 1 sensor 1 oxygen sensor signal, voltage too low during deceleration . So for next interference in mechatronic module will delay your vw fault. |
04257 Possible Causes:
04257 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Oil Temperature Sensor Malfunction
- Cylinder 1 Injector Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 04257 Code
- Inspect all the connections automatic glow time control module 2 (j609), circuit electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns