VW Code 09478
09478 Description And Summary : |
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The problem is about exhaust gas temperature, bank 1 sensor 2, out of range to change the oil filter and use the recommended engine oil to avoid any problems in the future so reductant temperature sensor, circuit high you can see the secondary air injection system bank 2, high air flow will delay your vw fault. |
09478 Possible Causes:
09478 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Rail/System Pressure - Too High
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- O2 Sensor Heater Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 09478 Code
- Inspect all the connections exhaust aftertreatment fuel injector 'a', performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns