I've got a horrible miss at idle, it sounds cammed. Really bad. It's got BRAND NEW plugs, wires, fuel filter, and a fairly new maf. The thing is it won't idle with the maf plugged in without me keeping it running; It just dies. So I unplugged the maf, and now it idles, but still misses really badly. Anywhere above 2800rpm it sounds good/doesn't miss, but any lower, and it misses. It also doesn't constantly search for idle, but it idles at 700rpm, then about every 20 seconds will jump up to about 3000rpm then goes back down, and idles/misses. I've checked the tps (1.00idle-4.66wot), the injectors are all getting signals, and clicking. It doesn't smell like gas(I have no way to check fuel pressure/fpr) The only things I can think of that I haven't already done are I haven't checked the injector resistance, but they're clickin'. And I haven't checked the IAC, which with my luck is probably what it is. Other than unplugging it to see if it makes a difference, how do you test the IAC? Here's the wierd thing, I tried to scan it, and it comes back "Vehicle Not Responding" It's got a CEL, but won't throw a code. Please somebody help me. I just miss my car! ...almost forgot... coilpacks are all firing, and plugs are getting spark.