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.
Registered Users
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
Seasoned Member
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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.
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? Originally Posted by Reefmike
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.
Thanks for the help
CF Veteran
Single cam 2.0 Neon from 1995 should have the injectors you seek.
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Mine came from a '97. The part numbers are right on the side of the injectors. 0280155703 on one side, 5277739 on the other.Originally Posted by Bustedback
Single cam 2.0 Neon from 1995 should have the injectors you seek.
CF Veteran
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?
Big question is WHY does this work better?
CF Veteran
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
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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 CherokeesOriginally Posted by spiceman
can you put these in any cherokee? even the older ones 87-88-89 etc...?
The injectors are also different for a 1999-2001 Cherokee.
87-98 *703 injectors
99-01 *784 injectors
This chart should help:

Honorary Moderator
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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).Originally Posted by Irongrave
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
Same thing. and cheaper, plus they were new

