We are trying to wire up the new FJO peak and hold injector driver. Does anyone know what the injector common from ECU is? Is it a 12v source or a ground? Instructions don't say ****. Does anyone know what pin out on the ecu it goes to?

 

it should just be a pisotive, and negative, injector leads in, and injector leads out

you are correct, the directions are misleading, and the car isnt in front of me right now

 

honda ECUs switch the ground side.

 

So should I have that pink wire hooked up to a25 on the ecu? Which is an 12v input?

 

I have no clue about FJO's weirdness. The honda ECU supplies a ground signal to trigger injectors.

 

here is what im talking about:




i dont know what the injector common from ecu is suppose to hook up to.

 

My best guess is a + wire, that's the only wire the injectors have in "common", right? The ecu triggers them by connecting one side of them to ground, the other is always +..

 

thats the new fjo setup the old one is different

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by underpressure02 &raquo;</TD></TR><TR><TD CLASS="quote">here is what im talking about:




i dont know what the injector common from ecu is suppose to hook up to. </TD></TR></TABLE>

Bumping this back up. I am about to rewire this dam thing.

For the Injector from the ECU should I cut the wire at the ecu and wire that to the FJO or should i just splice into the wire?

If I cut it do I wire one side into the white/red and then the other side into the Red (injector 1 from the ECU)

I found out I can just hook up the injector common to a power source.

 

Chad I sent u a pm

 

I installed my old version FJO driver just the other day.... it has twice the wires and was easier to figure out than that one.

I think that the injector signal common is the yellow/black wire that goes to each injector on the stock harness.

 

There is no injector common from ECU on a Honda...I wouldnt hook it up at all.

 

Ill be doing this install in a few weeks and any clarifying you can do would help. Hit this thread back up if you figure everything out........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xenocron &raquo;</TD></TR><TR><TD CLASS="quote">There is no injector common from ECU on a Honda...I wouldnt hook it up at all.</TD></TR></TABLE>

You need to or the box will not work.

 

that should be a switched hot (+) wire.. i.e. just about anywire that goes hot with key in on position and stays hot while starting and stays hot in on position.


the wire you need is also the wire that is the same color on each injector i believe it is yellow, where ever that wire sources from get it there or you could tap it some where. that yellow wire( i think yellow black stripe for my integra anyway ) is your injector common..

if you could get a wiring diagram for that vehicle just trace from the injectors back on that common wire see where it goes or just cut into the injector harness and tap there surely its already open for the other wiring your doing


cliff notes: just look at your injector wiring which ever color wire is at every injector is your common tap that

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by agrn93ls &raquo;</TD></TR><TR><TD CLASS="quote">that should be a switched hot (+) wire.. i.e. just about anywire that goes hot with key in on position and stays hot while starting and stays hot in on position.


the wire you need is also the wire that is the same color on each injector i believe it is yellow, where ever that wire sources from get it there or you could tap it some where. that yellow wire( i think yellow black stripe for my integra anyway ) is your injector common..

if you could get a wiring diagram for that vehicle just trace from the injectors back on that common wire see where it goes or just cut into the injector harness and tap there surely its already open for the other wiring your doing


cliff notes: just look at your injector wiring which ever color wire is at every injector is your common tap that </TD></TR></TABLE>

Awesome ........ thanx

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tepid1 &raquo;</TD></TR><TR><TD CLASS="quote">

I think that the injector signal common is the yellow/black wire that goes to each injector on the stock harness.</TD></TR></TABLE>

I installed new version on rota92's car last year. Ask him cause I dont remember anymore. but yellow/black wire seems to be the right answer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rota92 &raquo;</TD></TR><TR><TD CLASS="quote">

We re-did it at the dyno due to not having any fuel (but it could have been just not enough fuel) I cant remember directly how we did it there, donald and jeremy (servion) helped with that as well lol

Morgan re-wired my car all race car style so he may be able to chime in with this and how he did it</TD></TR></TABLE>

Awesome, id like to know for future reference. Going to be installing this very soon.

 

where's the best place to pick up a FJO injector driver

 

Alamo motor sports like under 200 shipped I paid for mine

 

Hey, I believe it's the yellow/black wire that is what you need to hook up to. Just like tepid said. Good luck buddy.

Vic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">Alamo motor sports like under 200 shipped I paid for mine </TD></TR></TABLE>

I got mine there too.... only $113 at the time.

I bought 2 actually.