Help issues with iac valve egr and ecu

[David Gilbert]

I have a 2000 gt convertible any help with the problems I am having would a big help to my gauges are slow to work after starting my idle air control valve went out my egr blew a vaccum line and I'm getting multiple ecu when using a scan tool
First My gauges are slow to work after starting I have fixed a ground and power issue already I'm not sure where to go next
Secondly the idle air control valve went out so I replaced it with no luck so I deleted it with a manual adjustment and no check engine light came on
Third two days after that the egr vaccum line blew off so I deleted the entire egr system still no check engine light
Fourth I wanted to see what I could do to adjust timing advance/retard so I plugged my scan tool in and it connected to ecu through a protocol that I had never seen before and got no codes or live data so I tried again and it connected to a different ecu using a different protocol and I got codes all of which I expect but no live data so I tried again and again different ecu and protocol this time I got live data but no codes so I tried a snap on code reader and same thing then went to a local ford dealer and they got the same thing any advice or a possible solution would be very much appreciated