I'm swapping a z6/b7 in my 91 Crx Dx and having a lot of fun with all this wiring(not)
Anyway, all the dpfi -mpfi conversions i've found talk about a resistor box which i don't need. Does anyone have the correct wiring to convert the dpfi to multi port without the resistor box? I know i have to run some wires to my ecu (P28) but can't find an accurate pinout or info regarding where the four wires run into the ecu

 

only thing you need to do to delete the resistor box is remove it from the car, obviously, and then take the 5 wires in the harness that went to it, and solder them together. that's it. the wires that go to the ecu are for the ground pulse which makes the injectors fire, you don't mess with those. by soldering the wires together you bypassing the resistor and sending a full 12v to each injector.

 

i don't have a resistor in my car. Its a 91 Crx Dx (obdo dpfi). I'm just trying to find where the wires from the two new injector clips i'm adding for mpfi run to the p28 ecu

I have an obd0 - obd1 ecu jumper harness but still don't know what else i need to change on the car's wiring harness.

http://crxcommunity.com/viewtopic.ph...e264afc1bdb80a
i found this link and was thinking about following it, can anyone verify if this is correct? Do i need to pull wires from the jumper harness and relocate them into other pins?

 

bump anyone?

 

this should clear things up

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

 

it helps thanx!

http://hondaswap.com/reference-mater...pinouts-28667/
i think this is gonna be the most useful since i'm going to obd1 P28

i have to wire injectors 2 and 4 to A02 and A03. Now since i am using a jumper harness it seems that these pin locations might have wires in them? Do i just remove the wires from these locations and run my own wires from the injectors to ecu locations?

 

so as everyone can see here, A02 and A03 currently have wires in the jumper harness. These two pin locations are supposed to be for injectors 2 and 4 which my car currently does not have. Do i remove these and just run wires from the injectors to these two locations?

 

i would just use a t-tap and connect your new injector wires right to the jumper wires. don't even bother cutting them or removing the pins.

 

alright so just wire in the new injectors that correspond to a02 and a03 on the jumper harness, gotcha.

now there are two wires running from each injector, where do the other wires run? Do i splice them into one of the wires from the dx injectors?

 

since you are not using a res. box you just need to run the other side of the injector to ign only power. i would just use the stock dpfi injector power wires. i believe they are yellow/black.