Hey guys I pulled a ex wiring harness out of a auto car (90 auto ex civic ) was wondering if it will work in my dpfi to mpfi swap I'm doing in my 90 civic hatchback that's a manual (stick) are they compatible or did I waist the 20 bucks I'm not good at splicing so was hoping to just slap it right in and go from my new si ecu I'm a noob and have nobody to help me with this other than you guys thanks for your help

 

Any help would be great I've heard yes no and should from all over heard that it will have extra plugs that can shirt out all kinds of stuff I need this thing on the road ASAP so could someone help man

 

I've seen over a 100 people have looked at this .is this a learning forum or are we already to know everything before we get here I'm using my phone which has a cracked screen and I'm getting frustrated try to learn how to navigate the site .i need help with this can someone just please help me tell me where to read and ill read it man you don't need to spoon feed me just throw a bone please I'm new to all this this is my first car I've really worked on other than trucks with v8 no swaping anything there really lol can I just get some help ?

 

you cant use the ex harness you have to use the dx harness and add the needed wires

 

http://hondaswap.com/swap-articles/d...writeup-49557/

 

i have a Si d16a6 5 speed harness forsale if that will help you lmk

 

Nope, he STILL has to use the DX harness and add the necessary wires for MPFI, as the Si engine harness will not plug into the vehicle wiring.

 

did you even search?
http://lmgtfy.com/?q=mpfi+swap+honda

 

? i did the swap just fine. you have to remove the engine AND body harness AND dash harness from the donor car and install it into your car. i did it in my 91 lx sedan. then i put that same harness in my buddies 90 dx. you have to re pin the plug from the dx harness to the ex harness that plugs into the rear body harness since the dx is not wired for cruise or power windows. and then ground out the one random pink wire that's left over from the plug swap to get the car to think it's always in park if you use the auto key cylinder. then run two wires from the reverse switch if you use the auto engine harness.

to be honest though it IS much simpler to just do a standard DPFI-MPFI swap using the stock dx harness and adding the injector plugs and the cyp wires. only reason why i did the swap was because my lx came factory auto and at the time i did an obd0 mpfi swap and kept it auto

 

use the harness that matches the car. then modify as needed. or you can always purchase a conversion harness that will suit your set up

 

Thanks everyone for the links and advice thank you