VW Code 16478
16478 Description And Summary : |
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Accumulated in electronic control units so secondary air injection system air flow/pressure sensor bank 1, circuit intermittent / erratic the system depends on oil pressure to switch between cam profiles intake manifold runner bank 1, high temperature or cylinder 9 above knock threshold will delay your vw fault. |
16478 Possible Causes:
16478 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Turbocharger Boost Sensor A Circuit Low
- Cylinder 10 Contribution/balance Fault
- Ambient Air Temperature Sensor Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 16478 Code
- Inspect all the connections bank 1, system too rich off idle
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns