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Swap to coil packs/ DIS in 97 TJ?

7.4K views 10 replies 6 participants last post by  tooofast  
#1 ·
I would like to upgrade to distributorless ignition on my 97 TJ using the newer style TJ/XJ type ignition. I did a bunch of searching and didn't find it covered anywhere. Anyone know of a write-up or want to explain how on here?
 
#2 ·
I am all over doing this too.. anyone done it?
 
#4 ·
There is a lot to be said for coil packs and good reasons (in my humble opinion) why most auto makers have gone to them. I totally support anyone's choice not to do this..but its my choice and I fancy it. After all if i stop doing thing to my jeep because they were expensive and hard I'd have noting left to do :thumbsup:.

Thanks
Dave
 
#8 ·
i agree, call up some junkyards and see what they got. you'd be better off swaping out whole motor and ecu then buying parts and trying to get it to work. Swapping out the 4.0 motors in these jeeps isnt that hard. Basic hand tools and an engine puller you can pull it out and put it back in and under a day taking your time.
 
#10 ·
This engine swap would be harder than it seems. Different data bus for the instrument cluster means it wouldn't work with the new ECU. Don't know if it alone being swapped is enough or if there are harness changes on the interior as well.

Probably fuel issues as well because of return/non-return differences.

So I don't know if an engine swap is the answer...