Ok, this started last week. It first started when i was driving home from my job( its a 30 min drive on a good day, deffinetly enough to let the car warm up), i went to downshift to get around somebody,when the needle went over 3k the car wouldn't accelerate anymore, bogged down like it was going through mud and started bucking like a horse. naturally i thought mabye it could be the MAFs because it was also idling a little off, so i replaced it. But, it didn't work. Then,i figured mabye it was the fuel filter because it hadn't been canged for the life of the car (i'm the 4th owner, the body has 251,xxx on it) so i changed it, it was a good thing i did cause it was completely shot. I then tried to drive home, about 5 minutes into my ride, it started acting up again, but worse. now anytime i put the pedal past about half throttle it decelerates and starts loping. it even does this at a stand still and if i hold the throttle down too long it stalls out
. i've also put injector cleaner in it to make sure they're clean. Any suggestions/ideas? i'm leaning towards a vacuum leak, or possibly a problem with the IAC or Throttle Position Sensor but i'm not certain. Any help is greatly appreciated.Thanks,
Pat
