hi i swapped a b18b1 into a 93' cx hatch and i have been looking around on here all morning for some wiring color codes. the wires i need identified are the IACV, IAT, and there is one more plug that is similar.

well... i just want to make sure i have the right plugs and not switched around. if anyone can identify the wire colors for those plug that would be nice. also what the third plug goes into? thanks.

 

I need this too, I keep searching and cant find, I have 2 plugs that are the same I just need to know which color wires are for the IACV

 

Bump, I'm having the same problem. I swapped a 98 B18B into my 92 cx and I have 3 plugs on my OBDI harness that have the same connectors. 1 isn't being used, the other two go on the IAT and the IACV, but I cannot figure out which plug goes where.

 

iat= red/yellow, iacv=green/white

 

iat green/red
iacv blue/black

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6hatchboy &raquo;</TD></TR><TR><TD CLASS="quote">iat= red/yellow, iacv=green/white</TD></TR></TABLE>
Mine from obd1 ecu pinout, so if its obd1 and on the ecu side thats what it is
(assuming they're the same from the ecu through eng. harness)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by serio_ENDLESS &raquo;</TD></TR><TR><TD CLASS="quote">iat green/red
iacv blue/black</TD></TR></TABLE>
What are yours for the engine harness?


Modified by z6hatchboy at 9:47 PM 12/21/2007

 

hi! OP here!
anyways a little update since people bumped for same questions.

Car is a '93 Hatch cx that i bought that came with a DX d15b7.
motor installed was a '94 b18b1.

As of right now, my car is running PERFECT. I have NO CEL's. I have driven over 900km(jdm cluster) in the past week(got it running perfect last Sunday 12/16). I commute 65miles one way everyday. MY IAT is yellow and red while my IACV is blue and yellow. The mystery third plug... is still a mystery... lol

My IACV threw codes even though the valve was removed and cleaned and i had the right plug. I fixed this by cleaning the connectors/plugs with wd-40, dried, then applied Dielectric grease that can be bought at any parts store for less than 2 dollars.

I had a roaming idle that was fixed by taking apart and cleaning the FITV and screwing the white plastic piece all the way in. This was when I also cleaned the IACV.

My fifth gear always poped out during fifth. There wasn't enough tranny fluid. so i added more Honda MTF. Problem fixed.

These were some of the problems I had and how i fixed them since alot of people are undergoing almost the same swap and might encounter the same problems. I hope this helps people to get their car running for the holidays. If anyone has anymore questions, feel free to ask or pm me.

for the holidays!