I bought a 91 cavalier 2.2 vl 5 speed a few months ago, it sat in a garage for the past 3-4 years, had no start so towed it to my tech school and got it to start, I replaced the sending unit including fuel pump. Map sensor was bad and got replaced, a bad injector connector replaced, along with new plugs, wires, and air filter, oil and filter and emptied old fuel and replaced with new, the whole matinence deal. Anyhow I just put it on the road, made the 10 minute trip home just fine, went to work the next day (yesterday) and as I was driving down the road it backfired twice, fuel started to cut and it shut off. Pulled over and started right back up and drove fine the rest of the day. Got in it today and started going down the road and did the same exact thing. Any leads to what my issue could be? Perhaps bad injector? Car has good fuel pressure when properly running

 

Got lead towards the CPS, getting it tomorrow, hopefully solves the problem...