Already notice a smoother idle. Have only driven it around the block so far. Can't say if the throttle response is any faster but it's definitely smoother.
Definitely gonna watch the MPG for improvement. Will post up what I get.

 

are they stock neon injectors? what size or year need anything else or just out with the old in with the new and fire it up? im looking at doing this also

 

yeah same here im putting in a motor and i want everything brand new and running brand new

 

dual cam or single cam neon injectors

 

This is perfect, I have a 98 as well and have been contemplating whether to do this or not and if to get new or just get them from a Junkyard. What engine did the neon have and do you remember what year?

Thanks for the help

 

Single cam 2.0 Neon from 1995 should have the injectors you seek.

 

Mine came from a '97. The part numbers are right on the side of the injectors. 0280155703 on one side, 5277739 on the other.

 

So WHY does the injector swap get better performance and better fuel economy? The swap is from a 4 cylinder motor so does the injector flow less fuel? This may cause better fuel economy and create a leaner burn making both statements (other claims) true but whats a long term effect?
Big question is WHY does this work better?

 

the OEM XJ is a single hole injector the 4 banger one flow the same rate but with 4 holes so better atomization of the fuel, thus a little better burn so little better response idle and maybe a MPG pick up though that's more from putting in clean injectors

 

can you put these in any cherokee? even the older ones 87-88-89 etc...?

 

You can only do this swap if you have a MPI 4.0L or 2.5L engine. This will not work with the TBI 2.5L. This applies to 1987-2001 Cherokees

The injectors are also different for a 1999-2001 Cherokee.
87-98 *703 injectors
99-01 *784 injectors


This chart should help:

 

bingo! what i did was about $115 i got 4 brand new Ev6(4 hole) injectors(used housings with all new internals and the test sheet for flow rate and what not).

Same thing. and cheaper, plus they were new

 

junkyard 703s 35 bucks plug and play you done

 

cool if i ever get near a pull a part i'll snag some if they have any neons

 

This is cool. I'm gonna try it.