So I am looking to do this swap but I still have a few questions. For an XJ like mine which is a 2001, it seems that I have two viable options for replacement injectors as far as this thread is concerned. Either the Neon 784 injectors or the Ford cb4 injectors. Now correct me if I am wrong but the Ford injectors will work but they are going to run a little on the lean side which could be a problem at sustained wide open throttle as compared to the stock injectors, that and they do not facilitate the clip to hold the injector perpecdicular to the head and therefore require an injector clip to be soldered to them to hold them in place. Now the Neon 784 injectors will swap right in, but they are a little older in design and are therefore not as fuel efficent as the Ford cb4 injectors. Am I understanding this correctly or am I way off? I want to make sure I have this down before I go throwing money around and melting pistons.

 

There are about 15 options for injectors. I have rebuild kit and 784's Im about to put in. Im running brand new for XR3Z's now.. I have to say i cleaned out the tube going from intake manifold to back of valve cover and my mileage went up and more power? Can that be possible?

Anyway, I think the stock units rebuilt are fine... Please sell me your stock units.. I will trade you my new XR3Z's if you want for your stock units? Let me know.. They work great in the truck but Im not sure they made a diffrence worth talking about.. Adjusting my kickdown cable made the biggest diffrence in gas MPG

 

From what I've read and experienced, the 784's are the best option for your '01. You shouldn't see a MPG decrease if you keep to your current driving style. It'll run rich when you first put them in, but if you remember to reset your ECU the fuel trim levels will correct themselves after 50 warm up cycles.

 

I think the tube you are talking about is the PCV tube, and I don't know why that would increse your mileage, but who knows? I read your earlier posts, and I read about what you are trying to do with experimenting with different injectors. I think that is a great idea and it will serve as referance to many people. I have just one comment though, in order to maintain a base line average, you can not by any means do anything else to the vehicle. Whether that be changing exaust, intake or cleaning something out. Everything else must remain the same on the vehicle in order for the test to show undoubtable results. By changing anything else but the injector, you have now indroduced a new variable into the equation, whether comparing data to the findings of your own vehicle or whether comparing to another XJ. Therefore you wouldn't know what is causing the increase or decrease in mileage, "Is my milage going up because of the injectors or is it the ...........?" Other than that, I will shoot you a message when I do the swap to determine if you would like to buy my injectors. Thanks for the reply by the way.

 

That's the thing, I really don't care about a horesepower increase, at least if it doesn't cost me any MPG's, and I think that is what you are telling me. But what I am really interested in is trying to save some gas, even if that was at the cost of a little horsepower. Like I wrote before though, I was concerned with some of these injectos running lean. So I went back into the chart and then found an injector that would run the same as far as CFM as the stock injectors, but then after reading on I thought that someone said that the Ford injector didn't have the recess for the clip that is needed to hold the injector in jor something to that effect. Now you say that I won't see much or any of an MPG increse. Are you saying that I won't see an increse at all or I won't see an increse untill the computer resets?

 

Sorry to jump in but i see a repeat again and again. This mod of changing injectors is in no way affiliated with MPG. This is just an uprgade from having a water pistol injector to a nicely atomized injector. If things flow at the same rate what in hell would make u think it will save you gas. i put the ford yellow in mine. and see no differences other that easier start, smoother idle, and better thottle response.

And im sure i can go back through this thread and highlight each and every post saying exactly what i just said. No horsepower gain unless you add forced induction and more fuel flow. Turbo/larger injectors/fuel pump/controllers etc. will be the only way to increase HP. and waste more fuel.

 

Pardon my ignorance but I'm having a long day and all of these numbers that are being thrown around are messing with my head. I have a 98 XJ sport. Am I correct that I would be looking for 703's? What vehicles did these come on. A buddy of mine thinks he has some in his yard and said I could come get them for free. If I can snag up extras I will.

 

****ING SEARCH PEOPLE DID YOU NOT JUST READ MY ABOVE POST. ITS IN THE THREAD. BACK TRACK, DONT LOOK AT THE LAST PAGE AS SAY YOU DONT KNOW. AND YES 703s will fit and work.

 

I read the previous pages including the chart however this entire thread has been a B*%C^fit back and forth on which injectors to use. I will be sure to not pick up any spares to help since it appears help is not warranted here.

 

Sorry for the outbreak.. its just tireing reading all the same nonsense.. the chart states exactly what you need and what others use on there vehicles. The that goes around are those who just want to be a PITA. But y this and what about that, and i dont understand. The chart says what you will need and what will work, and what vehicles to get them from. Once you get that far there are threads showing how to clean and test them before you install.

Sorry again.. i should be ok now.

 

Its alright I just got confused from the random BS posts and wanted clarification from someone who knew what they were talking about. Its nothing personal. Thanks for the clarification I printed out the chart and will take it with me and see how many sets i can scrape up save some members a little cash.

 

So if you go back into the thread chart or attached link, (and I have been through this entire thread) there are no exact answers posted to my exact questions, if I am mistaken then I apologize, but please enlighten me to the location of said information. And that is why I am asking, not to be a pain in the ***. That is your opinion, just like your initial reply to me, while a valid opinion of which I was taking seriously when I read it, is just your opinion. So, with that being said, next time you see that someone had posted to this thread just realize that this thread is for the dumb f@#ks like me to spread some around and don't trouble yourself with reading it or replying to it.

 

Quote:
Originally Posted by CheapCherokee
would this injector swap work for RENIX engines?

neons will work in renix

write up here, just read the first post 3 times.
http://www.ausjeepoffroad.com/forum/...ad.php?t=92236

 

oops my bad on that.. as to your questions.. You probably wont see much of an increase if any with the diff injectors. No matter which ones you choose. I have the 19 yellow ford injectors w/ no clip. They work great and see no differences, other then startup it easier, smoother idle, and better throttle response. You drive a jeep!! no where do it say GAS SAVER or Prius. The best ive seen here is 23mpg but that driving like grandma. So with that said and all the other bs its a straight forward swap explaining what will happen and what differences will be noticed. As for reseting the computer that only so your computer can relearn the system with new injectors.. Even though everything else is the same its better to do so.

Yes ford 19s will run lean at WOT(Wide open throttle) so if you want to "try" and save gas these might be your answer but you cant drive it with a lead foot. Mine doesnt seem to run lean at all

 

I did the swap on my 2000 Saturday....dont know about better millage but it seems a little crisper.....I used 1999 neon injectors.



http://www.oreillyauto.com/site/c/de...2521&ppt=C0024