Injector question

thegipper

New member
Any reason why injectors from a 97 wouldn't work on a 99 engine? I know the connectors are identical.

I believe I read the spray pattern is the only thing that changed (later style are better).

Thanks

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Any reason why injectors from a 97 wouldn't work on a 99 engine? I know the connectors are identical.

I believe I read the spray pattern is the only thing that changed (later style are better).

Thanks

Sent from my SM-N975U using Tapatalk

I have not heard of any differences between injectors hopefully someone can chime in would be nice to know..
 
Any reason why injectors from a 97 wouldn't work on a 99 engine? I know the connectors are identical.

I believe I read the spray pattern is the only thing that changed (later style are better).

Thanks

Sent from my SM-N975U using Tapatalk
As long as you replace all of them at the same time you should be okay. Mixing and matching injectors is when issues start.
 
I did some searching on some parts vendor sites and it turns out the PN for a 97 injector is the exact same as the injector for a 99 (23209-79095) so they should work.

I was thinking I should replace the O rings also while I'm at it but yikes, almost $4 a piece and you need 12. Those are some expensive O rings. (PN 90301-07001). I'm for sure going to replace the aluminum crush washers (PN 90430-12026 qty 6).
 
I did some searching on some parts vendor sites and it turns out the PN for a 97 injector is the exact same as the injector for a 99 (23209-79095) so they should work.

I was thinking I should replace the O rings also while I'm at it but yikes, almost $4 a piece and you need 12. Those are some expensive O rings. (PN 90301-07001). I'm for sure going to replace the aluminum crush washers (PN 90430-12026 qty 6).


Crush washers for what?

You do not need to take apart the fuel rail to replace injectors.

My Build and Repair Thread shows rebuilding them yourself. It’s easy.


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What is crazy for me is that my 99, built in October of 98, uses the old O rings on new style injectors. But the rail for the injectors works for all years so go figure.

Nice job on the weld there Mike. That could be the problem, or at least why you fuel trim numbers were askew.

Good luck with the injector and 02 sensor replacement.
 
Crush washers for what?

You do not need to take apart the fuel rail to replace injectors.

My Build and Repair Thread shows rebuilding them yourself. It’s easy.


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So if I do need to swap injectors, I can leave the fuel rail hooked up to the fuel line and just pull the injectors out?

If so, than I'll do it that way.

EDIT: can you link your build and repair thread? I can't find it.
 
So if I do need to swap injectors, I can leave the fuel rail hooked up to the fuel line and just pull the injectors out?

If so, than I'll do it that way.

EDIT: can you link your build and repair thread? I can't find it.


I’ll bump it to the top.


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Since it's related to the subject matter, here's a video Y'all can use to swap out your injectors.

<iframe width="560" height="315" src="https://www.youtube.com/embed/N-lhZIWOkyU" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
I did some searching on some parts vendor sites and it turns out the PN for a 97 injector is the exact same as the injector for a 99 (23209-79095) so they should work.

I was thinking I should replace the O rings also while I'm at it but yikes, almost $4 a piece and you need 12. Those are some expensive O rings. (PN 90301-07001). I'm for sure going to replace the aluminum crush washers (PN 90430-12026 qty 6).

Replacing the o-rings is not optional. You'll see when you remove the old ones, they will be crushed and formed to the contour of the injector (and brittle). If you try and re-use them they are very likely to leak.
 
Replacing the o-rings is not optional. You'll see when you remove the old ones, they will be crushed and formed to the contour of the injector (and brittle). If you try and re-use them they are very likely to leak.


I’ve used non OEM o-rings for the injectors without any issues that came in my YotaTech head replacement kit.


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Motor west has all 6 injectors with o rings for $220 shipped. They are denso but not the brown ones we all have from factory since denso doesn't make those any more. Then you'll need throttle body gasket, two plenum gaskets. And once at the rails you can lift high enough to avoid fully removing it giving you just enough space to pull injectors.
 
Since it's related to the subject matter, here's a video Y'all can use to swap out your injectors.

<iframe width="560" height="315" src="https://www.youtube.com/embed/N-lhZIWOkyU" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>



[MENTION=120071]mtbtim[/MENTION] the first thing I did was watch your video, twice. Thanks as usual.

I think I'm going to hold off ordering any injector swap related parts until I can get the new o2 sensor and the repaired pipe back in place. Maybe I'll get lucky and it'll fix the issue.

My 97 is not my DD so I can take my time.

The plan is to mess around with it after work so I'll hopefully have an update later tonight.

Thanks everyone for the help thus far.
 

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