Gen 4 wiring

[Mr2fast]

Would anyone please be able to help me out with the wiring for my gen 4 in to a 91t please? A diagram or any info would be helpful

[GDII]

I'd be surprised if anyone has one or is willing to share. I've been looking for the exact same thing for many years with no luck. I do have the intention of creating one for a few versions of the JDM SW20s when I do my swap. But that's on hold for a while.

[Jabeo]

I'd be surprised if anyone has one or is willing to share. I've been looking for the exact same thing for many years with no luck. I do have the intention of creating one for a few versions of the JDM SW20s when I do my swap. But that's on hold for a while.

Theres a guy in auckland who just recently completed a gen 4 swap into his sw, i can hit him up and see how he got the wiring done

[Mr2fast]

I'd be surprised if anyone has one or is willing to share. I've been looking for the exact same thing for many years with no luck. I do have the intention of creating one for a few versions of the JDM SW20s when I do my swap. But that's on hold for a while.

Theres a guy in auckland who just recently completed a gen 4 swap into his sw, i can hit him up and see how he got the wiring done

Yeah bro please

[tw2]

I am guessing the wiring diagrams are not available for gen 4 cars? Caldina?

[GDII]

The diagrams are but what needs changed to make each SW20 model work has never been listed or shown. Each car is different slightly but I believe it is mostly to do with fuel and the circuit opening relay. I do have access to a GEN4 loom and with my knowledge of the JDM 3SGE and 3SGTE wiring I could figure it out but I just don't have the time right now with other things going on.

[Jabeo]

The diagrams are but what needs changed to make each SW20 model work has never been listed or shown. Each car is different slightly but I believe it is mostly to do with fuel and the circuit opening relay. I do have access to a GEN4 loom and with my knowledge of the JDM 3SGE and 3SGTE wiring I could figure it out but I just don't have the time right now with other things going on.

well once you do ill be sure to be following along as i think thats the direction im heading in the future lol

[tw2]

I wired a megasquirt into my old ST185 using only the BGB. It should be fairly do-able with the caldina wiring diagram. 80% of it will be matching wires. The rest will involve working out what the gen 4 ecu needs to see to stay happy. Prime does wiring conversion harnesses for anyone who can't be bothered. Otherwise an aftermarket ecu would be simpler.

[Benckj]

I helped a friend wire in a gen 4 around 8 years ago. It wasn't too bad following the ECU pin-outs. Only real issue was the duel stage fuel pump run so we wired it to full on and left as is.

[GDII]

I helped a friend wire in a gen 4 around 8 years ago. It wasn't too bad following the ECU pin-outs. Only real issue was the duel stage fuel pump run so we wired it to full on and left as is.

Most people do that anyway and the NA cars have no choice but to run this system unless you go to the effort of changing the body loom which is no fun.
I'm sure it isn't that hard but as I don't know what is involved or done it myself yet so it's sort of a mystery. I've done a turbo to NA swap before but that was MR2 to MR2 rather than Caldina to MR2.