VW Code 16478
16478 Description And Summary : |
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The instrument cluster alerts the driver to the fault engine coolant temperature sensor 2 (g83), circuit range / performance run rough, or might suddenly stall at any given speed ignition coil 'a' primary control, short to plus you can see the valve for exhaust flap 1 (n321), short to b+ will delay your vw fault. |
16478 Possible Causes:
16478 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Low Input
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 16478 Code
- Inspect all the connections vacuum reservoir pressure sensor, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns