I'm putting my motor back together and decided to dump as much useless stuff as I can and need help on exactly what I need to have in place. I currently have a single turbo setup, adjustable fuel pressure regulator, no air control valve, no egr valve, no double throttle. At this point do I need any of the solenoids? If so, what ones? Also will I still need to retain either of the vacuum chambers? I've searched the net and only found diagrams that outlined the non-sequential setup that retained a few of the solenoids. Can anybody give me a hand with this? Thanks all!!!