1st let me start by telling you what i have. its a 89 4dr ef sedan and im doing a mpfi swap. i have a si mani,si dizzy, and a pm6 ecu, obd1 injectors. the problem im having is trying to match the color wires from the lx harness to the si dizzy?? also wen i pluggd up the ecu the light was solid and didnt blink or nothing my friend said that means its a bad ecu is this true???

any help is appreciated (kinda on a time crunch)


wires from lx harness dizzy plug

wires from si dizzy plug

wires ran from ecu for crank sensor

 

you should have obd 0 injectors unless your going to obd 1 also.

*** oh your pictures didnt show up

 

Honda Civic 1991 HELMS Wiring ED3 ED4 ED6 ED7 USDM


Search this on google and download the PDF file its all the wiring you need to know for both of them

 

A solid LED on the ECU means it is bad.

You do not need OBD0 injectors to run OBD0. You can run the OBD1 injectors without a resistor box.

 

@d15b7 - thanks for the manuals imma have to try those out.. also im runnin the obd1 injectors bcuz i didnt want to run a resistor box.

@FSRslug - is that the only way the light will stay on???

thanks guyz for the fast responses... and im goin to try n repost the pics

 

pics of the dizzy wires i needed help with.
http://img406.imageshack.us/img406/6...ensorwires.jpg
2 wires ran from the ecu
http://img684.imageshack.us/img684/2734/dizzywires.jpg
wires from dizzy
http://img440.imageshack.us/img440/3...dizzywires.jpg
wires from lx harness to dizzy

 

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

Check out this write up and see if it helps you out...

If you run OBD1 injectors do you have to fully convert to OBD1 and run a p28 ecu?

 

Your two wires you ran from C1 connects to the blue/green stripe wire on the SI plug
C2 connects to the blue/yellow stripe on the si plug.

The others should match up but let me double check everything



**** Ok so this is what I got

SI Plug-------------------------LX HARNESS

BLUE/GREEN--------------------C1 FROM ECU
BLUE/YELLOW------------------C2 FROM ECU
WHITE-------------------------WHATEVER THE WIRE IS AT B10
ORANGE------------------------WHATEVER THE WIRE IS AT B12
WHITE/BLUE--------------------WHATEVER THE WIRE IS AT C3
ORANGE/BLUE-------------------WHATEVER THE WIRE IS AT C4


Is there a seventh wire????



The colors dont match up exactly but if you know what each one does its pretty easy

 

no you dont have to convert to obd1. you just dont have run a resistor box when you wiring up your injectors. it has something to do wit the high or low impendence of the injectors.

 

You dont have to convert to OBD1 to use OBD1 injectors. Just soder the four injector wires going to the resistor box directly to the wire coming from pin A15. Yellow/black wire. Color match the distributor wires. -Later, BR

 

i dnt have a blue/green wire.. on the dizzy thurr are 2 full wht wires,blue/yellow, what looks like orange wire,wht/blue,blue and what looks like a orange/blue wire.... no blue/green... on that link i dnt see where it tells you what wire on the harness goes to what wire on the dizzy... its 7 wires if anybody could tell me what wire goes to what on the would be greatly appreciated... thanks again d15b7 for the help so far..

 

@brandonr the wires from my harness are not the same color as the wires on the dizzy..

 

what are the lx harness colors..... i know its a headache but hang in there....

 

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


Try this one too I know youve probably looked at a 1000 things...
When do you need to get this done.... If you can wait till tomorrow i will look at the SI harness and the harness on my car

 

thanks d15b7 you have been a big help...lol i need it done by friday really... the wires on the lx harness goin to the dizzy are ylw/blk, blue/red,red/blk,what looks like blueish green/red and a blue wire.... mayb the place i got from got it wrong mayb its not a si dizzy... bcuz i have 7 wires coming out of the dizzy not 6..

 

@ d15b7 that honda link is a lot of help but the wire coming from my harness are different colors from whats shown on that website... also my wires coming from dizzy are different colors... and also a bad ecu is the only thing that would cause a ecu light 2 stay on and not do anything??????

 

ok so you have a bad ecu not a total big deal. I think that is what messed my up when i tried to do it. Im going to try and do a complete write up with the write colors but im not doing it right away.


*** I looked this morning on the SI harness i pulled last night off my extra motor. I do have all the colors but they are really hard to tell exactly what colors they were. But if the plug is still attached i will tell you which one is which.

 

thanks d15b7 once i lookd really hard the wire i thought was jus blue was indeed blue/grn. so can you help me out with 1 more problem... which wire goes to wat... n bcuz im slow...lol if you could give me anotha diagram with color showing me would be greatly appreciated... thanks again for the help..

 

ok i will have to go look hold on and i will tell you what i got

 

mine all match up just look at your ecu and see where they run to your ecu and match them up this way

 

Ok did you move C1 and C2 to B10 and B12 respectively. If so go back and write down what color is at C1, C2, C3, C4, B10, B12 and tell me so i can tell you what to solder together.

 

sorry d15b7 i found out wat the problem was... wen my friend had did the wiring he 4got to tell me that he extended the wires from the dizzy...smh all the wires match up....i apologize for the mix but thanks for the help... do it matter which wht wire goes to what since they both wht???

 

Yes very much so....... The 5 original wires are wrapped if you look at them 4 of them are bundled together and the one white wire is separate. Its also the bigger white wire that goes to the top white wire on the dizzy plug.

 

okay so update i i sorted out all the wires and got another ecu now the cel light blinks den cut off also the fuel pump comes on but the starter wont crank over wont click or nuttn... what could that?????