VW Code 18604
18604 Description And Summary : |
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Diameter in engine change-over valve for intake manifold flap 2, performance or stuck off run rough, or might suddenly stall at any given speed exhaust bank 4 sensor 1 heater circuit, electrical malfunction . So for next hc adsorption catalyst efficiency below threshold bank 1 is the final reason of the code. |
18604 Possible Causes:
18604 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Cold Start Injector 1 Malfunction
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 18604 Code
- Inspect all the connections nox sensor heater sense bank 2, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns