Variable Induction System: Testing and Inspection

Variable Resonance Induction System:

SYSTEM OPERATION

VRIS System Operation:

1. Start engine and run at idle.
2. Open throttle valve quickly.
3. Verify that rods of shutter valve actuators 1 and 2 are operated.

CHECK VALVE

VRIS Check Valve:

1. Remove check valve.
2. Blow through A and verify air flows from B.
3. Blow through B and verify air does not flow from A.