
| Item | Description |
| 1 | Turbo boost pressure controller |
| 2 | from exhaust manifold |
| 3 | Pilot pressure |
| 4 | Wastegate control valve Refer to Component Description: (page 7) Comments: closed when de-energised |
| 5 | PWM (pulse width modulation) signal Comments: from PCM (powertrain control module) |
| 6 | Atmospheric pressure |
| 7 | Turbocharger boost pressure. |
| 8 | from air filter |
| 9 | Intake air |
| 10 | Recirculated air valve Refer to Component Description |
| 11 | Vacuum line, recirculated air valve |
| 12 | to intake manifold |
| 13 | Throttle plate |
| 14 | Compressor |
| 15 | Turbine |