bsmith628

hey guys i just swapped a d16y7 into my 94 CX hatch. i have a few questions. are the distributors interchangeable on my d15 and the new d16? second i had to use the d15 intake manifold beacuse the new engine had a newer IM on it and it wouldnt work with my wiring harness. i completed the swap with the original wiring harness and original ECU. the car starts but the idle is horrible and its not running correctly. also my speedometer is acting as a tachometer. do i need an ecu from a 96 Dx for this to work correctly?

boostedcivicsir

swap dizzy and intake mani, should wire as the same.
go back and check your grounds.

bsmith628

i checked all of the ones i could find, i could be missing one though. also there are 3 plugs on the IM that are all the same. im pretty sure i have them all in the correct location, but is there any way i can make sure?

boostedcivicsir

make sure map and tps arent crossed, andmake sure canister purge, iac, and iat arent crossed. w/o looking at the helms and seeing wire colors, its hard.

94EG8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bsmith628 &raquo;</TD></TR><TR><TD CLASS="quote">i checked all of the ones i could find, i could be missing one though. also there are 3 plugs on the IM that are all the same. im pretty sure i have them all in the correct location, but is there any way i can make sure?</TD></TR></TABLE>

Those 3 plugs you speak of are for Intake air temperature sensor(IAT), idle air control valve (IACV), and the purge solinoid. The wire colors going to each are as follows:
IAT - green/white and red/rellow
IACV - blue/yellow and yellow black
Purge solinoid - red and yellow/black

If you plug the IACV plug into the IAT it will kill the IAT

bsmith628

perfect thats exactly what i needed to know, when it stops raining ill check it out, thanks guys

94EG8

As boostedcivicsir mentioned check for crossed MAP and TPS, since i just happen to have a diagram right here, the wire colors for MAP and TPS are as follows:
MAP - green/white, yellow/red, white
TPS - yellow/white, red/blue, green/white

boostedcivicsir

thanks man.

bsmith628

any ideas on why the speedo is acting up?

94b16teg

Check the speed sensor conector on the trans. Mine had a broken wire and it would touch some times and work and then I would hit a bump or shift and it wouldnt work.

bsmith628

okay, so the d15 intake manifold DID NOT work because of the coolant hole that goes from the head to the intake manifold. i put a y8 manifold on. the IACV is a 3 wire instead of a 2 wire, the car runs like **** so i did a bit of research and i think i should pick up a 96 DX wiring harness and ECU, what do you guys think?

94b16teg

If there is just a extra coolant hole on the manifold plug it. There should be a way to make it work. On the other hand the 3 wire will never work that I know of and I would think I would be a pain to swap in a 96 harness if its even possible. Just figure out a way to block the extra coolant line. I have a d16z6 motor and trans in my 96 and I think I had to block a coolant line with a big bolt. Just my two cents.

bsmith628

its two holes that are supposed to line up, but on the d15 IM the hole is moved up about a quarter of and inch, and much smaller then the hole on the head, so coolant leaks out. i read alot about the 3 wire iacv but i dont really understand. i think my best bet is to leave the d16 with the y8 IM on it and just figure out how to get the 3 wire iacv to work

94b16teg

Or find a d16z6 manifold as I had one with no problems on my y7 before I swapped in the d16z6. Id try that because im pretty sure the 3 wire iac wont work because your ecu only has 2 wires. good luck.

94EG8

Get a Y8 manifold from a manual EX, they have a 2 wire IACV, manifolds from automatics have a 3 wire IACV.