Apexi vafc or vafc 2

I have a 90 integra with a b17 swap and using a obd0 pr3 ecu and i am looking for the wiring diagrams for a obd0 pr3 vafc or vafc 2 been looking on here apexi-usa.com and google and i cant find anything thats helpful to me…help and thanx

http://www.apexi-usa.com/manuals/electronics/vafc2_wiring.pdf