Can bad fuel injectors cause my Ford Explorer sport trac to stall?

we have tested it. Obviously no answers or I wouldn't post on here. I was told it's fuel related but they aren't sure what exactly. We have replaced plugs and wires, fuel filter, mass air flow sensor, o2 sensors, used fuel injector cleaner, replaced the fuel pump and air intake gaskets. It's running too rich according to the code we got when it was on a computer. But we were told it's a matter of buying parts and replacing until it's fixed. And who wants to buy parts they don't need because they some aren't cheap! Just looking for opinions from others before we spend more and more money on parts that we didn't need to

If you have tested it, what did you find? Testing means -- following your concern through proper pin point tests down to the point of determining failure. Not just "pulling codes" or getting random advice from someone who isn't going far enough. This forum is for quick suggestion and short bits of advice about common concerns in general about automobiles, and in some cases specific vehicles...some of us on here have a stronger knowledge about some vehicles compared to others. And there are indeed "pattern failures" that occur in some vehicles that we can share nuggets of information about. In your case, you have some kind of hard failure. What i'm hearing is that someone basically pulled codes, said "yep, it's a fuel related issue" or "running rich" (what are the codes by the way?), and by that information you have replaced a bunch of parts that probably didn't need to be replaced. And NO. It's NEVER EVER EVER "A matter of buying parts and replacing until it's fixed"!!! Goodness. Spend your money on a technician with skill, knowledge, tooling and reference material who can in about an hour find your problem and give you an estimate to actually fix it. That would be cheaper than all those parts you've already replaced. Truly. I do wish you luck, but your "shortcuts" are costing you more than the direct route.