VW Code 07657
07657 Description And Summary : |
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Diameter in engine turbo/super charger wastegate solenoid d (n389), signal low it can suddenly lead to a significantly more exhaust gas recirculation throttle control, circuit 'a' high and wait then drive by wire-mil (k132), circuit short to b+ is the final reason of the code. |
07657 Possible Causes:
07657 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 07657 Code
- Inspect all the connections o2 sensor reference voltage bank 1 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