Mystique97
Veteran CEG'er
as the title says, any help would be great, asked others tried to figure out for myself, took it to 2 different mechanics, and then the ford dealer, it has a header with intake, egr isn't hooked up but did this way before any of the add ons, plugs been replaced, wires, coil, new IAC MAF, I give up, is there anything that can cause this? oh and both 02 censors I replaced too, and it is running no CAT. another note: it idles rough more when in gear, not so much in neutral or park, smooths way out