Turbocharger Wastegate Open
WARNING: This page is about a different variant/trim than selected.
NOTE:
Callouts items in the following chart represent components shown in graphic above.
| Callout | Component Name |
|---|---|
| 1 | Q42 Turbocharger Wastegate Solenoid Valve=Duty Cycle at 0 to 5 percent (No boost) |
| 2 | Q42 - Electrical Wiring Harness |
| 3 | Turbocharger Compressor |
| 4 | Turbocharger Turbine |
| 5 | Turbocharger Wastegate Valve |
| 6 | Boost Pressure from the Turbocharger Compressor is routed to the Actuator (7) |
| 7 | Turbocharger Wastegate Actuator |
The wastegate is completely closed at idle. All of the exhaust energy is passing through the turbine.
During normal operation, when wide open throttle is requested at lower engine speeds, the ECM commands the wastegate solenoid with a duty cycle of 100 % to minimize any turbo lag. During engine loads in the middle and upper RPM ranges, the ECM commands the solenoid with a duty cycle of 65 - 80 %.