As title say, have 03 LB7 and haven't used my EFI Live in a few years and can't remember where to find how to disable/enable injectors. Replaced the injectors (was smoking bad at idle) now it doesn't smoke at idle but smoke under slight or heavy load when cold. No smoke when warm but seems to lack power. When idling warm there is a weird knock. Want to try and disable the injectors to see which cyl it is causing the knock. I think I got a couple of bum injectors as the balance rates are high on 2 cylinders.