ok folks, please HELP!!!! I have a 92 brew 5.7 7r4 trans 16?,??? miles. Have had fuel pump/filter spark plugs replaced iac, air temp, o2 sensores repaleced. tried a new map sensor, and still surging, but just at idle. it surges from 750-1100 rpm. What else can it bee. I've checked for vac. leaks. but have not found any. I replaced the map last, when I was fiddling around, I unplugged the old map sensor and the idle was normal, so i replaced it, but it didn't resolve. I should add that the ac clutch went out, but comp. spins, could that have anything to do with the idle prob??? any info, will be greatly appreciated!!!!