is somebody know how install this HKS AFR on a RX7 FD TT 94+.... where to connect 4 wires ??? black, red, white and brown !

Thank you

 

Make sure you have the AFR TYPE-D. if not, don't use it, you will regret it. Are you sure it's a brown wire, not a YELLOW ONE?
black= ground
red= 12v ignition on
yellow= pressure sensor line to the ECU
white= pressure sensor line away from the ECU
I am sure you can find an ecu pinout on line somewhere.