Evaporative Check Valve: Testing and Inspection

1. REMOVE CHECK VALVE





2. INSPECT CHECK VALVE
- Check that air flows from the blue port to the black port.
- Check that air does not flow from the black port to the blue port.
- If operation is not as specified, replace check valve.
3. REINSTALL CHECK VALVE

HINT: Install the check valve with the black port facing the port P side of the throttle body.