Okay so I have a 92 Prelude S cube that had an F-22 in it but I have an h22 that I'm either going to swap the head on to the F-22 block or just put another single cam like a court engineer or something like that. The problem that I have is like I said in my last post the dude they had it previously sold the wiring harness and I guess the guy interpreted that in terms of the guy who's buying it he interpreted that as well I'm going to cut the wiring harness where the engine harness and the fuse box Branch off from instead of inside the engine compartment you cut it like right at the trunk of the main harness where they split. Now I have everything grouped together as far as I can tell but even the factory service manual is somewhat confusing cuz it doesn't say exactly where the rest of it leads to at least not clearly and maybe I'm just reading it wrong and it's been a long day but just for the sake of it I was wondering if anybody had like a straight up diagram of just fuse block to main harness or fuse block to under dash or anything like that where you just don't have to sort through pages and pages it's already kind of like put together cuz if there's not already one out there I'm going to make one when I do this. LOL I just don't want to reinvent the wheel.

Also I'm going to be swapping out the p12 that came with it I have a p13 but it's OBD2 for another OBD1 Integra Civic ECU so that I can run that tune in a demon V2. My question is for the ECU itself how different is the wiring harness or it rather the pins on the ECU are they dramatically different from the p12 and the p13 for OBD1? I'm pretty sure I do have to repin like let's say a p28 or whatever so I'm assuming that'll be the same across the board so I just don't remember having to do that for a Civic and Integra when I was doing the D&b series engines. So if I throw a chipable OBD1 ECU in my system or in my car to run do I have to repin the Prelude wiring harness to make it work? I just haven't looked at the diagrams but I'm curious if anybody else has done it which I'm sure there's probably been a million applications like that just if anybody has any quick info cuz I have searched and I haven't found anything that's exactly what I'm looking for so I figured I'd reach out to you guys.

 

So, cool update. I went out to Pick-N-Pull and managed to find a nice little gem sitting there waiting for me. I went out there just to pick up some OBD1 strut Tower connectors and ended up running into a 95 Accord that had the whole wiring harness. So I pulled the engine harness and the pigtails from both ends of the harness and yeah that is saving me a whole hell of a lot of time. So right now I'm just basically putting leads back onto the pigtails so that I can plug in the harness directly and then once that's all set out the stock and then I can go ahead and just reach into ECU as needed for the particular ECU that I'm running. That should make wiring the fuse box and the rest of the wiring room inside the cabin a no brainer. Oh and I have to wire VTech and associated switches and sensors whatever but that's not a big deal.

Questions comments concerns?