Those little clips slide on the bottom of the fuel rail. Each injector has a groove in it for that clip. You have to get the clip off the injector to remove the inject from the fuel rail. You SHOULD put the clip back after putting the injector back in the hole. It ensures that the injector doesn't come loose from the rail and leak.

Just don't pry on the fuel rails, they're aluminum and you don't want to bend or crack them causing them to leak.

 

Well since i'm just swapping the #1 with the #3 to i have to take the clips off all of them to lift up the fuel rail. Because i took off the front 4 and i can't get the clip back on the fuel rail, and those 4 are the easy ones to get to. So if i got to take of the clips the back for i have know idea how i'm gonna get them back on. But i should be able to just pull up on the whole fuel rail after i take off the 4 bolts, right?

 

You don't have to pull the clips to lift the fuel rail at all. You only have to pull the clips to get the injectors out of the rail.

The injectors will pop out of the intake without removal of the clips, you can pull the rails, and injectors as one piece out of the intake, then swap the injectors around as needed.

Oh, there is a bundle of wires that is clipped to my intake. It runs OVER the fuel rails and kept me from pulling my rails the first time. Unclip the loom from the intake and the rails should move around MUCH easier.

 

Okay so i'm gonna get those clips back on the fuel rail. Then take out the 4 bolts and get the wires off the loom. Then i should be able to pull the fuel rail right up. Or do i got to pull it at a angle or something. Because thats what i did the first time and it would not come off.

 

I would lift on one side, then the other... back and forth until the injectors came out of the intake. THEN slide the clips off the injectors to be swapped, putt them out of the rail and swap them. Line up the clips with the grooves on the injectors, slide them back on and push the injectors/fuel rail assembly back down so the injectors go back into the intake.

Ideally, you replace the injector o-rings (2 per injector, 1 top 1 bottom) anytime you remove them from the intake or fuel rail. I didn't the first time I messed with them and had a fuel leak onto my intake (not good!)

You can get the o-rings at autozone, they're not expensive.

For your testing, don't worry about the o-rings. Get your injector testing done, THEN do the o-rings.

 

k, sry for all these questions but i never done this before and i don't wanna mess up. So when i lift up the fuel rail all the injectors are gonna come out. Do i have to replace all the o-rings or just the 2 that i swap? Also by what your saying is leave the clips attached to the rail just slide the injectors off the clip? Thanks for all the you time on helping me out here.

 

you're taking your fuel rails and injectors off for a misfire???? first and foremost gap your plugs all to .050 and check the way the wires are routed or if they are even in the right order. take a screwdriver or stethoscope if you have one and put it up against the injector and listen for a constant clicking, that means it is working fine. also replace the number one plug and wire and start again; no sense replacing the tranny if your wipers aren't working (simile)..

 

Well like i said i covered all the easier steps. All my wires are brand new. I checked the wire and it has the correct resistance in it. The plug is brand new. But it is gapped at 45, but i don't think that would cause this bad of a miss. The opti is brand new. The wire is not touching any metal or any other wire. The only other thing i could think of that would cause the miss would be the fuel injectors. I had them serviced at the shop for $60. It didn't make them any better. So i'm at the last draw, i got to take them out and switch them to see if the miss moves. If it doesn't then i guess i have to replace my opti again. If there was any other option i would do it but i'm running out of those.

 

Well i didn't swap the injectors yet. But i did put a brand new wire and plug(gapped at .50 this time) in the car. It helped the miss. The wierd thing is it really only misses at idle. When i'm driving it may miss 2 to 4 times in about 10 seconds. But most of the time it doesn't miss at all. But at idle it misses about 5 to about 20 times. Why do you think that is? Do you think it could still be a injector?