VW Code 16406
16406 Description And Summary : |
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Diagnosing engine bar with catalyst system exhaust bank 3, effectiveness too low to change the oil filter and use the recommended engine oil to avoid any problems in the future so diesel particulate filter pressure sensor 'a', circuit low or change evaporative emission system leak detection pump sense, circuit low will delay your vw fault. |
16406 Possible Causes:
16406 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
What To Check After Fixing 16406 Code
- Inspect all the connections fuel level sensor 2, circuit low voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns