i have a 93 GXE and i'm having some trouble with the car.
when i start my car in the morning it runs very rough and feels as if it might cut out. but it doesn't. today as well as two or three other occasions in the last week or so i've been cruising at around 50mph and the car starts running roughly. i try to give it gas but the engine won't rev up. i try down shifting and it still won't give me a little power. recently i had a fuel injector replaced because of a engine misfire issue. as of right now the engine isn't misfiring at all. i'm pretty sure the problem is related to a lack of fuel running to the engine.
but i don't believe that any of the fuel injectors are responsible. so i hmmmm'd and haaahhhh'd a little and thought that maybe there's a problem with the o2 sensor???
i have just replaced the fuel filter and probably will replace the plugs/wires, and distributor cap.
do any of you guys have any suggestions or similar problems?

 

Those will almost definitely NOT be the O2 sensor since the engine computer doesn't even read from it until the engine is warm. You should try replacing your distributor cap and rotor. When't the last time you replaced your spark plugs? Replacing your O2 sensor might be a good idea anyway, they should be replaced every 60-75K miles anyway.