where can i get the FCD wiring diagram of mazda rx7 fd or can somebody help me where would i connect the turbo smart fcd color code wire of red,blue,white,black wire ?

 

I don't believe that FCDs can be used on FDs. They have a speed density EFI system and if you clamp the manifold pressure signal, bad things will happen.

FCs can get away with it because they use the pressure sensor only as a secondary load sensor.

 

You really need to read the 3rd gen FAQ before you start modding the car. Nobody is going to spoon feed you on this forum fyi.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/

Turbo rotaries do not tolerate poor mods and will result in a blown motor quickly. The FD is even worse compared to the FC Turbo. The FAQ has the time tested, proven recipes for good mods and things to look out for with dangerous mods.

Happy reading.