I'm making the transition to MPI on my 2.5L 4banger renix with mainly '92 parts. Have the intake, injectors, TB, engine electrical harness, etc. I'm updating the crankshaft position sensor- will I need to replace the flywheel or should it be the same from 1987-1992? The part I think I need is LFW195
( http://www.ebay.com/ctg/LuK-LFW195-C...heel-/79021526 ) but do I already have that part on the old block?

 

When doing an HO to renix swap, Cruiser54 recommends using the renix torque plate. (there is a link to his stuff in my sig)

 

I always use autozone.com when cross referencing parts. just list the two different years as "your vehicle" and look up the part numbers

 

Pretty sure ecm and fly wheel gotta be same era.

 

Not the same flywheel from 86 to 92. Renix and HOs use different flywheels.

 

OK, then I'll need to buy a new flywheel. Napa shows one (part# 88193) and it doesn't show compatability with the 2.5L. But then they do have a ring gear (6003189) that fits the 2.5L. Is it just a matter of buying both and swapping the teeth? I didn't think those came undone...

http://www.napaonline.com/Catalog/Ca...193_0315051247
http://www.napaonline.com/Catalog/Ca...189_0370449784

 

Can anyone vouch for the swap of the ring gear?

 

One question your attempting to install 91 mpi system on renix correct all electronix will need to be swapped and wired in seem like a big headach starting .jm2ch Are you mpi now or carb never clarified year ?

 

This is on a 1987 with a single injector atop the throttle body, not carb but not MPI. I already have the ECU, engine harness, sensors, intake manifold and injectors, fuel rail, throttle body, etc for a '91-'95 emissions system. All of the Renix system is already removed and I'm cleaning it up to use it elsewhere. The engine bay is desolate, but no headaches yet. Jeep electronics and emissions systems don't bother me at all.

 

My wife wrecked her 95 2x4 XJ, smashed the from end but engine is still good. it did bend the frame and subframe where steering box is mounted. I found an 87 XJ 4x4 with no motor. Can I drop the engine from the 95 in place of the 87, or should I take the front end of the 87 off and turn the 95 into a 4x4? Will they even match up?

 

The 87 is called TBI, Throttle Body Injection.