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Ok all, it’s the end of a long day working on the Jeep in the heat and I can’t track down this problem. I was back stateside for about a month and when I got back it didn’t want to start. It finally did fire up bu once I had it running again I noticed I was down on power. That progressed to the occasional engine cutout once it was warmed up it would act like it lost either fuel or spark for half a second and come back. RPM gauge would drop too. Of course, out comes the parts cannon and I replaced the O2 with a genuine NTK, new NTK CPS, new Mopar TPS and IACV. The Jeep hasn’t had any issues firing up since I got back until now. Today I replaced the coil and dizzy since I assumed my cutting out issue likely was there. Once I had them installed (and the distributor was perfectly indexed by the way), I cranked for a while and then sputtered to a terrible idle. It got smoother over time and cleared up. I shut it off and went to restart but it wouldn’t come back on. Acted like it was flooded so I left it for an hour and had lunch. Fired right up after that so I assume it was flooded which of course is not common on a FI engine. Since then restarts have been very hard, it is way down on power (like there is maybe 50 left lol). I pulled a plug and attached it to the coil wire. Got good spark. Pulled the fuel rail and the i hectors are all firing. Compression tested each cylinder and they are all great. So I got out the multimeter and vacuum gauge. Vacuum is low and flutters like crazy around 10-12Hg. MAP is reading 3.1v at idle which is not very smooth. I feel like I have too much fuel and bad timing. I am sick of the inability to fine tune both these items but have to live with it for now. Desperately in need of some assistance here on this one. Also swapped the CTS with a new Mopar one. Even had a spare ecu I tried and they are both the same. Can’t find any sort of vacuum leak either and I checked everywhere.

All Original MJ buckets have the tilt forward feature as well as 2dr XJ’s. May help broaden the search

I’m compiling my leftover NOS parts to set aside and making a list of new ones to get. Will be on the lookout for a SWB roll bar as well as a set of 10 hole wheels with the rivets.

Are you adding a new cargo light or replacing one?

Very interesting pic. Wonder if the full TJ console would fit with buckets.

So it turns out that it’s an eliminator. Interestingly I now have 2 eliminators lol.

That’s a good point. I wonder when the last 90’ rolled off the line

Wow, that’s unexpected! Nice to know

Yep lol. I won’t be back stateside for a while. Plus it seems like nos or even good used part and especially accessories are getting to be slim pickings.

Going to be nice to be able to collect the parts over the next few years.

I really like the idea of the Cummins. I’d love to be able to get decent fuel economy out of a Jeep for once also. Since it’s 90K original miles though and a very well optioned truck, I am also considering an all original restoration. Maybe fashion after one of these three:

Hmmm, I’m leaning towards a solid original restoration on this one. What are your thoughts on whether this is an eliminator or not?

Thanks @eaglescout526 What style wheels would have been original to this? “Eliminator” is on the title but doesn’t mean anything. Any chance of getting trim level figured out?

I wouldn’t do it. Send them back and get the right bushing ends with sleeves. I’ve done it before but it doesn’t turn out right.

Just picked up this MJ from Oklahoma. It will be sitting in storage for probably the next 2-3 years before I do anything significant with it. 1990, Jeep, Comanche 4.0 / AX15 / NP231 / Dana 30 / Dana 35 / SWB Build date: 06/1990 NW Arkansas Status: Solid driver almost zero rust. Future reto project Notes: Eliminator package, Colorado Red, Grey interior, Bucket seats, full length console, full cluster, AC. Current owner: I believe I’m the 3rd owner but will have to verify

That looks like a short bed. 4.0 also but likely a BA10 tranny

It uses 4 clamps. You can position the clamps in different places to avoid obstacles. I had to move mine for my hylift jack

Neither for now. It will be staying in Arkansas for the time being. When I go back to visit I’ll work on a game plan.

More pics Pretty minimal surface rust Typical rocker rust the rear bumper that’s included Full dash with 90k original miles Still awaiting the VIN

Some pre purchase pics:

Well, eventually, I’m thinking either a fully optioned out oem build similar to @Red Mistress or going with the Cummins 2.8 crate engine and 37’s. I’m kind of done building 4.0 based performance engines.

Picking up a 1990 MJ in the morning and just wanted to document the process of the next few years. It’s going to be a long time before I get around to working on it but looking forward to it eventually. Specs I know so far: 1990 Eliminator Short Bed 4.0 4X4 AX15 Bucket seats Full console Slider rear window Original Fog lights No floor pan rust and only a couple of small rust spots on the passenger side rocker and rear fender. Original rear bumper! Lol, I won’t throw this one away Once I grab the VIN I’ll get it registered. This will be a virtual build for quite a while.

Should be picking this one up in the morning! Thanks for the tip

That would be a non c-clip dana 35 if it’s the original axle. You’ll need parts from a 1989 or earlier axle then. The non c clip style axle can use 4340 chromo steel shafts that even the 8.8 can’t use because of the c clip design. A set of 30 spline 4340 axle shaft, 30 spline arb (installed correctly) and a tnt truss with a Spicer HD cover and you’ve got one stout little axle. Chryo treat you R&P and you’ve got an axle that can handle 35’s all day long with more clearance than the 8.8 can dream of. Just a thought

Sounds good, thanks