1993C4LT1

Hey guys, I already pulled the fuel rail and put paper under the injectors to see if any are leaking. Problem I'm having is I can't conect the fuel injector connectors to the injectors. Not enough slack. Any help is appreciated. 93 LT1

1993C4LT1

That's what I can't get to connect.

1993C4LT1

Or do these connectors have to be connected to see if any injectors are leaking?

tunedport85inject

no way to raise the whole main inj. harnes? so you can plug in that connectors.Do you try to force a little bit the main inj. harnes?

1993C4LT1

If I force it, it feels like it will break. I put the key in accessory mode, and saw a small gas leak on one of my papers. I put my finger under every injector, and felt fuel on 3 of them. But I was moving the fuel rail. Not sure if they leaked because of me moving the fuel rail. Sorry, I'm a novice to all this stuff.

tunedport85inject

the main wiring harnes CAN't break,just pull it a little ,you need no more than 2 inches,i'm a TPI guy,but the wiring harnes it's usually free in that position,may be a little bracket somewhere.plug the injectors,turn the key and prime the system,put shop towels under there...have a fire extinguisher handy ( as a preventative measure,don't be scared).

1993C4LT1

It worked
About to check for leaks

1993C4LT1

Oh yeah, one leaked a lot. Thanks man

tunedport85inject

good! you find it...

aklim

Why bother? Send it off for testing. Lets say it isn't leaking but has a collapsed basket filter like one I had. How would you know? This is exactly why I send mine off every few years. Further to that, stock Multecs are the first thing I would toss in the trash. Without a flow bench, how will you know if the injector is having good spray pattern and similar flow numbers to the rest?

1993C4LT1

Yeah, it has the Multecs. So I figure they leak and are 21 years old. I'm confused, are you saying may as well replace them?

aklim

I would. They are not worth the money to clean and test. You can get Bosch 3 a reman ones pretty cheap, relatively

AJ123

I put these 24 lb Bosch 3 in mine

Call the number in picture ask for Jon from fic

https://www.corvetteforum.com/forums...questions.html

1993C4LT1

Thanks! That's what I will do

ghoastrider1

be sure to use the green rubber o rings, I think they are better.

1993C4LT1

Will do.

aklim

When FIC did my injectors, they always sent them back with O-rings.

1993C4LT1

Anyone tried their Bosch 4 injectors? Just curious. Again, will call him tomorrow and ask questions. Just wanted to ask the forum members.

aklim

I think those required tuning? Not sure.

Cliff Harris

When you do an injector leak down test you don't need to connect the injectors. You're doing a mechanical test to see if the pintle in the injector is sealing, not an electric test.