wiring
 

I was wondering if any one has a diagram showing the pin locations and what they are going into the computer. I need the one for the 88 and for the 89-91. Any information would be extremely helpfull.
Thanks.

Have you checked the FSM, linked from the FAQ stickied?

Theres A GREAT link for the S5 HOWEVER there is CRAP for the S4 im not an electrician so I dont know how to follow a schematic.... but the s4 one explains which pin is which color and what it goes to (ie injectors, etc)

go here for the S5 part
http://208.62.166.66:82/guest/shop_manuals/89-91FSM/

89-91 Wiring Diagrams
 

I have the 89-91 wiring diagrams. Send me your email address or your home address. I will mail you a copy of the info you want. RX7MAVEN

Bollocks, the S4 FSM has all the info needed, specifically in the Fuel & Emissions Systems and Wiring Diagrams chapters.

http://www.teamfc3s.org/main/factory...ual/1986_1988/

Attached is a partial of the pinout of the series four from the series four FSM. The series five is similar.

If the author of the thread is trying to install a series five ECU in a SERIES four, you need to consider more than just the pinout of the ECU's. There are other players on that EM harness. If your not doing that......then just ignore this piece of advice.