when I hold the air door open with the truck off the flip the throttle I see that it does squirt fuel back there.
when I punch the throttle the front vacum pump never lets loose for the rear air plates to open. Why's this? When the trucks running the front vacum is alllllllways pulled all the way in no matter how much the throttle is pushed in. When I put a hose to the front vacum for the rear air door it does move in and out when you stop putting a vacum on it. I tested all this with the truck running and me sitting in the engine bay revving the engine.
the front vacume diafram thing won't release vacume when I blip the throttle to 4k. I've disabled that little choke tab that holds secondaries from opening when the engine is cold.
any idea as to why when the engine is reved this vacume diafram thing never looses vacume and releases the secondaries air door to be able to be opened?
