my 93 corolla act as if it has bad gas in it after i feeled it up 2 weeks ago. it act as if it going to cut off when i stop at a traffic light. after i refeeled the it still does it. i refeeled at a different the second time.it does some times when the car is idling in park. sometimes it hesitates when i'm going about 50-60 mph. i changed the spark plugs a couple of weeks ago. i didn't change the wires though(tight on money). could it be the wires or is it the gas or the gas pump or gas filter. could some one please help.
Sounds like dirty injectors. Put some injector cleaner in your tank and go for a good whirl down the highway. I reckon after a good half hour doing about 100kph (60mph) she'll be a different ride! Good luck!