Taking a look at the above image the choose off going straight down on all four ITBs is the outlet with the tiny hole just because of the throttleplate (on my ITBs there's no vacuum there - i.e. useless) Unplug inventory harness from all engine-sensors and factors like injectors and https://erickjigdb.shoutmyblog.com/33775119/new-step-by-step-map-for-4age-engine-sale