I posted a while back that my Raider would only start and run for a few mins, it started when I would be driving and all of a sudden it would just shut off, it would sit for a few hours and start up again and I would drive the rest of the way home. Then it kept happening more frequently until it would only idle for a few minutes in the driveway before shutting off. I replaced the coil, spark plug wires cap, rotor and plugs, I replaced the little black power unit as well as most of the corresponding wiring so i know we have good connection there I still would get the same result. After letting it sit for a few weeks I decided it was time to take further action so I had my ECM rebuilt by AvPro in Florida. The turn around time was awesome, I would recommend this guy (Nick) to anyone. Anyway I got the ECM back re-installed it and fired up the raider, I drove it around for two days with no issues, would start and run no problem. Until last night it died on me again! I let it sit and it started back up after about two hours, I still don't understand what would cause it to just shut off so randomly? I drove it today and after it was warmed up I tried to kill it by jiggling some of the wires around the coil, kept running. The other thing was is that it was raining rather hard last night, maybe i should take a spray bottle and lightly spray around and see if water has anything to do with it dying? Im lost right now, much like before, any ideas?

My truck started doing that before last winter, ended up being a fuel pump that was on its way out. two tows home was the lesson I had to learn. when your engine quits, walk to the back of the truck and listen for the light hum of your fuel pump running.

I'm wondering what would have been rebuilt on your ECU if the problem still exists?

Well the fuel pump is new so I know its not that, do these fuel pump relays that go bad in them? and if so where is it located in order to test it? Thanks.

Well it wasn't starting at all until it was rebuilt so I know it can't be the ECU anymore, i guess.

I had that happen and it was a crack in the new rotor I had installed. Was sure it was a fuel pump at first...

Wow a crack? It would work sometimes, and then just shut your truck off?

Yes, the last time it died I went around a corner, so I thought it must be the fuel pump. Finally I pulled the cap and rotor off because I had recently changed it, also wanted to check the distributor and wala, a crack that would short out the ignition.

wow thats interesting I did just recently change the cap and rotor Ill take a closer look, its like this thing has a mind of its own. thanks for the help. Ill keep posted what I find.

I have an '89 that had an intermittent kill issue. It would just stop running whether at idle or running down the road. The only consistent things were that it was somewhere between cold and fully warmed up, and that it would restart once fully cooled down. I read a post here that seemed to match those symptoms and they said replacing the "photo optic sensor" in the distributor did the trick. I found the unit at RockAuto under "ignition control module" and also under "distributor pickup coil", part # LX 122, ($90 approx.). Relatively easy install and it cured the problem 100% !

My thanks to all who post technical info here, as it saved me mucho dollars and time in that case . Because it was temperature sensitive it would have been almost impossible to test the unit as bad. Hope this helps.