1st cylinder problems, injector? computer?

[young-gunn]

ok, so my battery got drained and went completely dead. After this it was not firing on the 1st cylinder. I found out that everytime you connect the battery, it gives power to the first cylinder (like a small *click) it's running bad, and blowing smoke. I'm thinking that either the computer is having problems, or an injector could've went. I am going to swap the wires to see if it is a wiring problem or an injector problem. Could anything else have caused this? btw, I checked the wiring, it's fine. If it is the injector, how do I change it? Is there a way to turn those screws without starting to strip them? and after that does the injector just slide out? I haven't changed injectors before, I'm not sure what to do and would like to know. Thanks.

[rsmithdrift]

ok, so my battery got drained and went completely dead. After this it was not firing on the 1st cylinder. I found out that everytime you connect the battery, it gives power to the first cylinder (like a small *click) it's running bad, and blowing smoke. I'm thinking that either the computer is having problems, or an injector could've went. I am going to swap the wires to see if it is a wiring problem or an injector problem. Could anything else have caused this? btw, I checked the wiring, it's fine. If it is the injector, how do I change it? Is there a way to turn those screws without starting to strip them? and after that does the injector just slide out? I haven't changed injectors before, I'm not sure what to do and would like to know. Thanks.

I just replaced my injector # 4 two days ago ironically.

They suck arse. All I can say is I stripped the lower screw and it took 6 hours to get it out because the fuel line runs right next to it and it severly limited my options. Should you strip a screw, you can either get a bolt out kit and try that (didn't work for me, screw was too soft) or use a dremmel and cut a slot in the screw to make it a flat head screw (this is what I did that worked) or you can *try* to vise it or tap it free. Never works for me but it's what I've been told.

Anyways, the injector just slides right out *IN THEORY* but that sucker is held it with an insane amount of resistance. I'll put it this way, I broke the red top part of the injector twice trying to pry it out. I finally go it and it came out with so much force that it bounced off the underside of the hood and fell back into my manifold.

The new one will pop in (I used a 8mm socket and a hammer) and then it's just plug and play basically. It's a royal pita.

Go into the KA forum and look for the "Fuel Injector or Wiring too it?" thread that I DJpants and The One worked through this problem.

However make sure it's your injector first, go to autozone and have them test it. Or get an ohm meter and do it yourself. Or atleast read the codes and make sure you have spark and a good plug. That injector is $100 after tax...EACH! And a PITA to remove. so yeah make sure it's gonna fix your problem first.

[DjPantsSpecR]

lol rs. youre such a tool

yeah injectors are a pain to take out. its possible that your injector is stuck wideopen, but i dont know.

but rs covered it, however i wanted to add:

that there are two slots cut into the red top part of the injector. you put two screw drivers in these slots and pry up, and it'll start to come.

as for those screws, you probably will strip them. however, rs didnt try this, and ive done it three or four times now. but you just put a vice-grips on the head of the screw to break it loose. i dont even mess with the screw driver anymore whne i pull injectors.

but, like he said, make sure its your problem first. but injectors do spontaneously die like this. so first, just pull off the electrical connector and check the resistance across it. it should be 11 or 12 ohms, anything else indicated a malfunction

[young-gunn]

ok, well I switched the wires first, and the problem carried over to the second cylinder. So I figured it was obviously from there back. I have had this problem before, and it turned out my computer was corroted, I put a computer that looked like new in then and now it had this problem again. So I took the computer out of my parts car and put it in. The problem stopped. and all it's doing now is blowing white smoke (just from the gas that was poured into the engine when the computer started to act funny, it's burning it off now). So I need to know, is there anything that could've caused it to screw up? I figured maybe the injector got stuck wide open, but why would it fix itself when I put a different computer in? This other computer looked like new, could it have been faulty, or could've something caused it to short out? I dont want to end up with another wrecked computer, would the injector have anything to do with the computer screwing up? I still have warranty on this computer and can get a credit for it, but I dont want to have to try to find another computer if this one goes, they're not easy to find, nobody can order them in, and Auto recyclers charge crazy amounts if they have any. Just does anyone have an idea of anything that could still happen yet? I dont want to screw up the computer that is in it now. thanks.

[rsmithdrift]

ok, well I switched the wires first, and the problem carried over to the second cylinder. So I figured it was obviously from there back. I have had this problem before, and it turned out my computer was corroted, I put a computer that looked like new in then and now it had this problem again. So I took the computer out of my parts car and put it in. The problem stopped. and all it's doing now is blowing white smoke (just from the gas that was poured into the engine when the computer started to act funny, it's burning it off now). So I need to know, is there anything that could've caused it to screw up? I figured maybe the injector got stuck wide open, but why would it fix itself when I put a different computer in? This other computer looked like new, could it have been faulty, or could've something caused it to short out? I dont want to end up with another wrecked computer, would the injector have anything to do with the computer screwing up? I still have warranty on this computer and can get a credit for it, but I dont want to have to try to find another computer if this one goes, they're not easy to find, nobody can order them in, and Auto recyclers charge crazy amounts if they have any. Just does anyone have an idea of anything that could still happen yet? I dont want to screw up the computer that is in it now. thanks.

Your injector could be in the process of dying. They will cut on/off freaquently for a month or two before they die....

Although you confuse me when you say you changed wires and the other injector died..... This would assume an electrical short somewhere in the wiring.

And swapping computers?? I don't know about that. I don't think that'll affect fuel injecors working all the time or not unless it's the connection to the computer. So yeah......I'm still kinda confused though. Check every electrical connection you can.

I