Taking a look at the above image the consider off likely straight down on all 4 ITBs is the outlet of the small hole just with the throttleplate (on my ITBs there isn't any vacuum there - i.e. worthless) This makes confident that the throttle plate is totally closed, but https://devinxwtro.full-design.com/little-known-facts-about-4age-engine-for-sale-76981130