Injector #5 not firing

[Rubyz32]

90 n/a
New efi harness (wiring spec, thanks yuri)
Used, known working, ecu
New reman injectors
New o-rings
New rails

No codes

Did balance test and listened through screwdriver
Plug is slightly wet

Other than a pinched o-ring, what else should I be checking?
I'm so close to getting her running right guys. Thanks to everyone that helped. Especially czp and the mods here.

[Rubyz32]

I forgot to mention, I put a mood light on the inj. Plugs and they are all getting signal

[marcyprojects]

Not that it will help much with your new reman injectors but I had the same problem on my 90, exact same injector too. I searched around and found this little backyard trick of tapping the top of the injector lightly with a hammer. Sounds crazy but mine was jammed up, tapped it several times while the motor was misfiring and it cleared. I had to do it once more about 2 weeks later but hasnt come back in over a month. I used a small hammer and a socket extension to tap on the top of the injector cover. I guess the vibration from the hammering losens up whatevers in there. Try it if you want...

[Rubyz32]

Man, I thought about doing that but I figured I'd get torn apart for such a crazy idea. If the injector is bad, I don't see the problem with giving it a shot. Thanks.

[marcyprojects]

Man, I thought about doing that but I figured I'd get torn apart for such a crazy idea. If the injector is bad, I don't see the problem with giving it a shot. Thanks.

Same here man. Let us know what happens

[veery]

Not that it will help much with your new reman injectors but I had the same problem on my 90, exact same injector too. I searched around and found this little backyard trick of tapping the top of the injector lightly with a hammer. Sounds crazy but mine was jammed up, tapped it several times while the motor was misfiring and it cleared. I had to do it once more about 2 weeks later but hasnt come back in over a month. I used a small hammer and a socket extension to tap on the top of the injector cover. I guess the vibration from the hammering losens up whatevers in there. Try it if you want...

This is called massage therapy! Do it!

[Rubyz32]

Unfortunately I got no response from the injector. Guess I'll pull the plenum and replace the injector. Thanks for the idea nonetheless.

[Trimble Epic]

Before you take the injector out of the fuel rail, pull the rail and check the seals underneath. Mine was bad and caused a misfire. You can read my adventures here.

[Rubyz32]

Did you hear the injector clicking? I'm not hearing the click. Im wondering if a pinched o ring would cause the injector to not click since it wouldn't be getting the right pressure.

[Trimble Epic]

I thought I heard the injector clicking, but after checking for spark and knowing that cylinder was dead, I had convinced myself that it wasn't actually clicking and I just didn't know what to listen for.

After reassembling my plenum and finding my cylinder still misfiring after replacing all 6 injectors, I was determined to prove they were clicking by using the techniques found in this thread... that's when I found a dropped fuel rail seal on the floor.... sigh.