Running on 3 Cylinders... I need help please.

[Florin1]

Ok so i cant figure out why my car is still running on 3. I thought it was a bad injector because i couldn't get a resistance on the culprit, so i ordered 4 more (440cc). I replaced the bad one and still runs the same.

Here is what i tried so far:
If i pull that "problem" injector harness off, car runs the same.
If i pull another off, than motor really takes a dive. (but doesn't die) {this is running on 2 cyl.}
If i leave the "problem" injector/harness connected but pull 2 other injectors off, the car dies.
Another weird thing is I reversed the 2 inj. harnesses thinking maybe i switched them at some point but car runs the same. Weird. Still accelerates the same with the harness reversed on that bank.
So i know my problem lies there somewhere.
I've also tried just giving constant power to that injector (so it would stay open) but the idle didn't change at all.
I've put on a different coil pack, but still nothing...

Please give me some help because I'm out of ideas.

Car is a ej20g motor running on stock 22t computer and harness

[kimokalihi]

I would have to guess it's got to be the wiring or the ECU that is faulty. If the injector is not firing at all, what else could it possibly be? Or maybe for some reason they're both clogged or not working but that's unlikely. Have you tried replacing it with more than one injector?

[Florin1]

uhhh i cleaned and checked the injector before putting it in.

Also i just pulled plug wire @ the spark plug and motor takes a dive on each one except the problem child. All 4 cylinders get spark...

[macipusy]

Check the injector wiring by following the instructions in the FSM.

[Florin1]

Where does one get this fsm? I don't have access to a dealer that's willing to help me.

[macipusy]

There are links on this site....search for it and then save the pdf.

[Florin1]

i think i might be on to something. I tried plugging in the other 3 spares to the one harness to listen for clicking, and none of them click. My spare sti's do. So can all 4 of my used/new injectors also be bad?? I get 18.6 ohms on each one, but they don't click...

[Legacy777]

Check the injector wiring.

http://bbs.legacycentral.org/viewtopic.php?f=12&t=14485

[Florin1]

Turns out the new injector i got were all seized up. Rob recommended soaking them in seafoam. I did gasoline, and got at least one working... Now to get rid of that damn CEL