Well, it idles a little funny. It is a little funny under about 1700 rpm when you start to rev it, but after that it revs fine. I reset the computer last night, and took it out for about 30 mins. and it ran a little bit better, not to much. It had a loud high pitched ping also at over 4000 rpms. Now, I went out this morning, and it is doing the same thing again. The reseting of the computer did nothing for me. Here is what I am going to do today: 1.) Pull out hte plugs and see if any of them are fouled 2.) Check for any kind of vaccum leak 3.) Puit in a new PCV 4.) Kick it if none of the above works! lol. Really though, I don't understand what the problem is. Maybe the o2's, maybe the plugs, wires, coil pack, maybe the...? There was a slight cut out problem beforebefore the stock h-pipe was put back on, and after, but as soon as I did the Valvoline fuel injectin system cleaner, it ran horribly. I am wanting to think that it did something harmful, because it happened immediately after the service was done. What do you all think?
1996 Moonlight Blue Mustang GT
offroad h-pipe, 3 chamber flows, motorsport "c" springs, removed air silencer, '98 17" GT wheels, Clarion 12 disc changer, Viper 650 ESP