I wasnt sure whether my tvis was working the other day so i took the vacuum hose off the actuator, connected another hose to it and sucked the hose, you can hear the valves open when sucked and they close when you stop. Which got me to thinking if vacuum is applied all the time, the valves should be open all the time. Any thoughts? I tried attatching a line from the plenum straight to the actuator and i recon i've got a bit more boot.
Its really not too bad all the way through, my thought is the more ya put ya foot down, the more air it sucks in, the stronger the vacuum, the more the valves open. But then i could be wrong, its been known to happen!
