Oldsmobile/Buick Repair: flooding, gm dealership, delta 88

Question
I have a 1990 Olds Delta 88-v-6 92,000 miles(in family since new-mostly highway miles). Has been running rough, flooding when starting in cold weather, sometimes, but not always, for about a year now.  I put in new plugs & plug wires, used injector cleaner in gas several times-new fuel filter-disconnected battery so computer would "relearn" as it says it will do-it is getting worse, floods most of the time now, no matter if weather or engine is cold or warm, especially when I stop for a stop sign.  If I really step on it, no lack of power.  Took it to the local GM dealership-they say injectors all working properly, fuel pressure fine & there is nothing wrong with it. It is putting so much gas through it actually drips out of the manifold & I'm afraid to drive it because I think it will burn up.  The only things ever replaced on this car have been alternator, starter & of course the regular things like belts, hoses & battery. Could an injector work part of the time & fail part of the time?  If so how can I determine which one without replacing all of them? Could the computer be the problem? Any suggestions would be greatly appreciated. Thanks!

Answer
hello ,yes an injector can fail intermittantly.they are tested with an ohms meter high ohms is bad.if one is bad it will have high ohms the rest will be alot lower.the ohms is based more on consistency of each injector rather then amount of ohms.well it sounds more like either a temp sensor or a map sensor these will both cause flooding.and cat convertor.SAFETY DO NOT DRIVE LIKE THIS FIRE HAZARD.good luck please rate my help ty billymac