peter93xj

I just swapped a set of 784 injectors into my 99 xj and it looks like there's a gap between the block and the injector. My question is is this normal? The fuel rail is in as far as it can go and I haven't had any leaks coming from the injectors. Heres a pics. I'm worried about dirt or grime getting in there

mr white

You leave an extra o ring in there?

Bubba93

That looks right to me, i have had mine in there like that and it has been fine. The o-ring will keep it sealed up just fine

CheapCherokee

looks fine, the O ring is way bigger and is what keeps it sealed. mine also look similar and work fine with no leaks

peter93xj

No o-rings where left in there. I made sure of that and triple checked just to be safe. Thanks for the replies guys. I had never done an injector swap before so I wasn't sure if that was right or not and just wanted a second opinion.

ZINGGG

As long as the o ring seated properly, you're good to go!

CrawlerXJ

Curious why you went with "784" vs "702" or "703"?

rainman

cause a 784=703 but with EV6 different electrical connector. Some Xj's from 99 came with ev6 injectors.
looks alright.
Dude got a vacuum cleaner? I would be worried about crap getting in there as well, no way I would have pulled the old injectors will all that loose dirt/ crap around the holes.
But it is not my heap it is yours,
good luck with it.

Programbo

784 and 703 are the same injector just with different electrical plugs as rainman mentioned (Except 98 is the cutoff year where you can find some both ways) 702s are similar in performance to the Ford "yellow stick" 710s and put out less fuel. I agree about the clean up part. Can hardly tell that's aluminum you are looking at!

peter93xj

Yea I forgot to clean the engine bay when I swapped them. I made sure to clean holes and scrape any dirt out. Everything is running fine with no problems. I appreciate all the help guys

CrawlerXJ

Rainman PM'd me yesterday and said their the same "702" & "703".
His supplied data file
http://www.usrallyteam.com/content/p...ector_data.xls

Programbo

I answered this in a PM but just for future reference this particular data sheet has a typo showing the same data for the 702 and 703. If you want to confirm that just ohm test one of each and you will see the difference in them where this data sheet shows they are the same.

rainman

thank-you for that.

Programbo

I guess it might have helped if I put the ohm stats in LOL. As mentioned the "data sheet" shows them both being the same. If you test one of each you'll see the 703 tests at 12 ohms and the 702 tests at 16 ohms. That matches up with the correct cc/min as seen on these 2 pages:

http://www.witchhunter.com/flowdatapix/b0280155703.jpg

http://www.witchhunter.com/flowdatapix/b0280155702.jpg

xjallseasons

I have two codes that showed up on the gauge at 300 and 303. Both of them state that I could have faulty fuel injectors. Well since I have 142k on the clock and they probably never have been changed out, would a 742 injector work on a 1996 xj, 4x4, I-6?
I actually got codes 138 and 141 but those are for o2 and oxygen sensors.
Please help! I am getting really poor fuel mileage.
Thanks!