i have an 02 gt with ~70k miles on it. when i start it up it startes fine, idles fine(until the alternator kicks in then it skips a beat every few seconds), seems to rev OK, but when i put it under load it starts to run really choppy like its on 6 cylinders, and shakes. fuel filter, injecters, and catalytic converters have all been suggestions, althought i just changed the filter this morning and it didnt work. after i changed the fuel filter the engine light finaly came on and said it was the MAF sensor, so i cleaned that with the maf spray cleaer and still no results. do i need a whole new MAF? is there a better way to clean it beside the spray? any suggestions would be appreciated, thanks guys