Orion problems

Hi everyone, I also have a 1988 Orion 1.6i Ghia and lately it's been driving me crazy. I can't even drive it hard; it starts, but when I'm driving it, it jerks and stalls. I've already replaced the ignition module, distributor cap, spark plugs, air and fuel filters, even the fuel pump—it's cost a fortune, and I hate to get rid of it because we've been together for so many years, but it's driving me nuts. I was hoping someone could lend me a hand. Today, the thing wouldn't start at all. You try to start it and it just stalls; it's like the fuel injection is cutting out. Thanks.