VW Code 18804
18804 Description And Summary : |
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Diameter in engine exhaust bank 3 oxygen sensor before catalyst, heater circuit, regulation at lower limit to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 4, sensor 1, no activity and wait then water in fuel sensor, circuit is the final reason of the code. |
18804 Possible Causes:
18804 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 18804 Code
- Inspect all the connections control module defective
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns