hey i was wondering if anyone had a wiring diagram for my mpfi swap -- 88-91 DX converted to Si.. i just need some help with the plugs, i have a brown one (i dont know where it goes), and green one (which im pretty sure is EAVC), and a white one that is hanging off something on the back right side of the manifold... andd maybe another white one


help!!

 

The matching weird green and brwn ones are the inj. The green is the eacv, and the white is the iat. This is for the grouping on the intake mani.

http://hybrid2.honda-perf.org/tech/4gdxtozc.html
http://www.fourthgenhatch.com/mpfi.html
http://www.angelfire.com/d20/h....html
http://www.geocities.com/teampimports/fuelinj.html

Ryan

 

ya but there is one that isnt coming off the harness, its coming off some other thing that is directly to the right on the back of the manifold, its a white plug.. dont need it?

 

see the thing on the far right of the intake manifold , to the right of the EACV, there is a wire hanging off the bottom of it with a plug, where is this supposted to go?

EDIT: go here
http://www.angelfire.com/d20/h....html

pic is on top of page

 

Um...I can't find what you are describing. Could you help a blind dude out, which manifold etc?

 

what is the thing circled in red and what does the wiring coming down off the back (has a white plug) go to?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shivern &raquo;</TD></TR><TR><TD CLASS="quote">


what is the thing circled in red and what does the wiring coming down off the back (has a white plug) go to?</TD></TR></TABLE>

The circled sensor is just left unpluged.

You will have an extra plug in the dx harness (tandem valve). Its the one with a orange wire, and a black wire.

Ryan

 

If im not wrong, the circled picture is the warm up solenoid. I guess some intake manifolds came with the feature of warming the intake manifold up during cold winters. I have two manifolds, one with it and one without (both onsale btw =P)

 

We actually hooked that up in my car and I can't drive it if it's unplugged.
It's the Fast Idle Control Solenoid. 88 manifolds did not have them. 89+ up!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by droppedcrxsi &raquo;</TD></TR><TR><TD CLASS="quote">

The circled sensor is just left unpluged.

You will have an extra plug in the dx harness (tandem valve). Its the one with a orange wire, and a black wire.

Ryan</TD></TR></TABLE>

I thought that was my only problem, guess not.

Got dammit!

 

Ok, i taped off the orange/black wire, now all thats left for the EACV is a two yellow wires, and one has a black line on it, is this correct?

 

Blue/Yellow and Black/Yellow wires are EACV

 

that angel fire link is DOPE

so is 4thgenhatch....

 

K all the general wiring is done, now im waiting for my injector harness deal to come in the mail, then the ecu.. thanks for the help -- ill probably be posting more

 

At least it sounds like your making some headway.


Mine on the other hand..........................

Thats all i have to say.

 

yea now its time for me to install the new SI distributer...

 

this may be a stupid question, but could you do this with a y8 manifold and a PM7 ecu?

i just got one (the manifold, still bidding on the ecu) for a future mini me swap, and if i could do the mpfi conversion first, i want to...i could just aquire the rest of the needed parts....maybe?

...i'm new to all this honda stuff, sorry if this seems ultra stupid to ask.

 

Yo i'm about to wire the distributer up for crank angle, but i dont have the plug off the SI wireharness, but i do have the plug off the old distributer... anyone have any advice on using the old plug from the dx harness and cutting the si plug off the distributer and rewiring it?

thanks

 

You can use any connector, it makes no difference. Just repin the wires. As long as the proper wires are in the proper locations its all good.

http://www.deepstaged.net/repin.htm

 

how is the swap going? im planning on doing the swap this summer and planning to pay someone to do it for me

 

Swaps going good, alot of useful people on this forum. Tomarrow im repinning the distributer, installing my injector plugs w/ all the wiring predone (me sitting on my *** at home), still gotta find a ecu somewheres though

 

did u buy that pre done injector harness on ebay??

 

no i ordered the injector plugs from bustah49 and did all the wiring my self, now today im installing all of it, and repining the distributer. and im still lookin for a pm6 for a good deal.

 

Right on, ill look out for a pm6 for ya man.
Try eBay

 

when you get it all done and wired up, put a post up to say if it is really worth it or not. cuz i was thinking about doing this. but i wasn't sure if it was worth it.... i think i might just skip this step and go straight for the motor swap.