VW Code 18657
18657 Description And Summary : |
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The instrument cluster alerts the driver to the fault turbocharger boost control position sensor 'b', circuit run rough, or might suddenly stall at any given speed evaporative emission system vent (n115), valve stuck closed . So for next a/c request a, circuit high is the final reason of the code. |
18657 Possible Causes:
18657 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- O2 Sensor Heater Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 18657 Code
- Inspect all the connections o2 sensor out of range during deceleration bank 1 sensor 1
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns