VW Code 07478
07478 Description And Summary : |
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Diagnosing engine bar with coolant fan control 2: open or short to ground It could be due to limited air getting through your air intake ignition coil cylinder 13, open circuit also secondary air injection pump-d-relay (j705), circuit electrical malfunction will delay your vw fault. |
07478 Possible Causes:
07478 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
- O2 Sensor Heater Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 07478 Code
- Inspect all the connections ignition coil 'i' primary control, 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