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Hey everyone, I have some questions regarding swapping from an S4 to an S5 ECU. I have a 1987 sport Rx7. I got a complete S5 powertrain (Engine, trans, ecu, accessories) and S5 adaptronic pnp.
My eventual plan is to make a 6-port turbo build out of everything, but in the meantime I would like to get the S4 block running on the adaptronic with S5 intake for the gains from intake design and VDI. From what I understand from other forum posts and looking at FSM, I should be able to swap all S5 accessories onto the S4 block and use the S5 engine harness. My question is what to do with the front harness. I was able to find a diagram for the S4 front harness plug (F-31), but am unable to find anything on the S5 pinout. I am fully comfortable repinning for the S5 ECU connector, but would like high quality documentation on which pins go where. Any pointers, or references would be appreciated.
I think I actually answered my own question. I found pinouts for the Adaptronic's S4 and S5 ECU with factory functions. Assuming the NA and Turbo front harness are the same, I will just base my repin on these pinouts. ie correlate the function from S4 to function in S5 and make the appropriate connections.
