h23 ecu wiring diagrams - Honda Prelude Forum

Si_g · 12-26-2003, 11:07 AM

hey i m tryin to install a vafc to my h23, and im tryin to find thewiring diagrams for it.

thx

vipastyle · 12-26-2003, 11:12 AM

Does this help?:
http://www.ntpog.org/mods/fifth-afc/wiring.shtml

Read that then check out the ECU diagram pictures.

chester · 03-15-2007, 04:32 PM

Does anyone have these diagrams? I'm trying to install a VAFC on my h23, but no images from any threads come up.

G_Loc · 03-15-2007, 05:38 PM

I'm gonna try to snap some pics of my Helms later

petern101 · 03-15-2007, 11:28 PM

oh man i remember doing this years ago.

the stupid vafc doesn't have the wiring diagram right. even if you go to apexi website. i had a helms but the ntpog website was a tad bit quicker in wiring.

its basically hooking two wires in a series and one in parallel. once you figure that out its simple. but if i were you, i would really get a pnp harness because its just so much simpler and if you want to remove, its so much easier.

btw....you said vafc on a h23? did you just get a vafc for cheap and not want to get a SAFC?

chester · 03-16-2007, 01:23 AM

Yeah, all the wiring diagrams I've found have all been the same as the manual, which is wrong. I can't get the ntpog website to work.

Where can I find a PNP harness? I really just want to get it in there for good. I don't plan on removing it.

I got a pretty good deal on one. I figure since I'll be going with an h22 eventually, I'd just put myself a little bit ahead.

petern101 · 03-16-2007, 09:09 PM

^well then i'm not sure you can use a pnp harness since i think the vafc pnp is made for a p13 and not a p14 diagram.

i won't be home until monday so until someone scans you the diagram, i won't be able to do it till then. also its much easier to remove your seat because of the ecu location and the position you'll be in.

chester · 03-16-2007, 09:50 PM

From what I've read, the PNP harness will work for all OBD1 VAFCs, only. I think I might just go this route, since I hate dealing with wiring.

Removing the seat is a must. Sitting upside down and backwards in my driver's seat while installing my alarm was very uncomfortable.

Qveon · 03-25-2007, 11:06 AM

Quote:

Originally Posted by chester

Yeah, all the wiring diagrams I've found have all been the same as the manual, which is wrong. I can't get the ntpog website to work.

Where can I find a PNP harness? I really just want to get it in there for good. I don't plan on removing it.

I got a pretty good deal on one. I figure since I'll be going with an h22 eventually, I'd just put myself a little bit ahead.

Well if you tell me what wires you need (tach, injector 1-4, map in/out, etc) i can tell you wire colors and pin numbers. otherwise i dont know if ill have time to take pics of all my helms stuff. My daily driver is broke down and it taking all my time to fix it.