joeylyrech

iTrader: (11)

Im tyring to help a friend to install a S4 T2 motor on his 79 RX7 using all the S4 electronics,we have a complete 88 T2 as a donor car,motor and tranny are on the car already using GLE-SE oil pan and front cover but the problem its the wiring.i searched for hours how to do swap but i still have a bunch of questions and thats why im asking for help.Today i started to install the engine harness(emissions harness) and ecu on the car but im confused,Do i need to swap the pressure sensor (the one inside the car) and all the electronics(fuel pump relay,main fuse)
Do i need to swap the harness coming of the cas and going in the fuse box inside the car?Its there any way to build a simple harness to provide power to the coils and cas without swaping the complete harness?sorry for all the questions guys and i will really apreciate any help Thanks Joey

steve84GS TII

The entire right side harness and all the FC barometric/knock and underhood sensors must be retained.Its basically plug and play.

The left side harness is easy to make up using the FC harness for raw materials.
Youll also need the FC underhood fuse block,FC main relay,FC coils,FC fuel pump circuit opening relay and the FC fuel pump resistor pack.

Its quite easy to wire it all up,its been covered in detail a million times over by myself and others.There are between 10 and 15 wires youll need to lay,solder and route,depending on if your staying smog legal or just trying to make the engine run.