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The experiment with acetone was from some internet gossip that it had a positive effect on fuel atomization and good for mileage but I never saw any positive effect. A more mainstream additive as Ronnie suggests might be helpful. Quitting while running is not a good sign but it has an eerie ring to when my crank sensor had a partial failure. It went on for quite a while, acting normally, sometimes not starting, or stalling while running if I closed the hood or opened and closed the drivers door. Really weird, weird behavior that defied the common diagnosis of CPS failure. It never stayed broken and was finally replaced as a last resort. This was over five years ago and has never reoccurred, but I don't remember which engine was in the car at that time? Hotwiring the fuel pump in a non-start would eliminate any question about the relays and such.

The Pacer certainly was a unique car. I can see them being collectable. They were a pace setter when they first came out (pun intended). With all the glass I would think of George Jetson's car when I looked at one of them. Even though they looked a little odd they were supposed to be designed so they were aerodynamic and fuel efficient.

I was thinking in 90 the fuel pump relay was relocated to the interior fuse/relay block and only two relays are the firewall for the ABS and brake pump. I could be wrong but if that is true you should change the fuel pump relay and see if that fixes the problem. I would try a can of Seafoam in the tank too. It couldn't hurt.

A friend of mine had one, and it was a nice car, but I always felt like I was in a fish bowl. Never thought of the Jetson's but yeah I can see it now...

Kind words were hard to come by at the time. The one fatal flaw in my very first buying brand new experience was I ordered it without A/C. Super bad idea but a good car otherwise. Traded it in one year later on a brand new V8 powered Hornet wagon, with A/C.

I got about 280,000 miles on the Red before it gave out. It was about $250.00 for pump and labor. It was last year and I was 61 and wasn't interested in crawling around under a car trying to do this.

I don't know how this will apply to a Reatta... I had a 2004 Dodge Dakota pickup with 54,000 miles that sat most of the time. I took it to Lowes one day to get some bags of mulch and parked it in the yard to unload it. Went to start it and all it would do was crank over but no start. Checked for spark and it was good so I put a fuel tester on it and found 0 fuel pressure. Had to be the fuel pump fuse right? No, the fuse was good. I crawled under the truck to see if I could hear the fuel pump running. Nope. For whatever reason I decide to slap the bottom of the tank with my hand. As soon as I did I heard the pump start running. I crawled back out and the truck started right up and did so the rest of the day while I was mulching around the house. The next morning no start until I slapped the bottom of the fuel tank and then it worked fine the rest of the day. Over the course of a few days it got to the point where the tank had to be slapped each time I started the truck. I didn't want to have to deal with dropping a tank that was full of gas in my garage so I took it to a mechanic. $234 later it was fixed with a new "fuel pump cartridge". Apparently you can't just buy a pump for a Dodge. The mechanic said it wasn't uncommon for a Dodge like mine that sits for long periods of time to have the pump go bad. I guess there is a problem with the brushes not making contact in the motor due to corrosion or something. Not long after that I sold the truck. I never liked that Dodge from the day I bought it.

It can be hard to track down intermittent problems like this, and mine reacts in a somewhat similar fashion although it always starts. I have been thinking along the same lines as you but every time I check fuel pressure, it's right where it's supposed to be. In my case, it sometimes requires an extended cranking time to fire up. There doesn't seem to be any rhyme or reason to it, sometimes after sitting overnight and sometimes a warm restart after less than ten minutes. Always runs fine once started. I blame some on things that I may have done, much larger injectors, hi flow fuel pump and a chip I burned myself, but then it will start instantly time after time. It is perplexing. All that said, if this is the original fuel pump approaching 200k miles, it may be letting you know it's tired. Does it run for a few seconds consistently when you just turn the key on? My pump has about 40k miles on it and I have tried all sorts of different additives, xylene, toluene, acetone and even race gas but the pump doesn't seem to be affected but it is ten years newer than the original.