Sometimes it won't start without giving it gas and keep it running.

yes I took it and #3 was a misfire so I changed all pugs/wires and then cleaned air intake and sprayed into the fuel regulator. Also I cut the yellow wire off the ignition switch so the security system is disabled. It now runs better and starts much easier but I still have to give it gas even though its much less to get it started. I do try to start it without giving it any gas and it will start sometimes but idle at about 4 to 500 only until i give it some gas then it idles right at 6 to 700 unless its cold then it idles at 1000 then drops to 6 or 700. Once Its warmed up it idles great. I don't think is the fuel regulator since there's no smell. When driving it runs great and sounds great. I also cleared the check eng light and it hasn't come back on after about 100+ miles of driving. Should I just let it go until the light comes on or do you know something I am missing or even a tip. I'm layed off so I don't have money to spend. Is the car on a timer to die or what? Thanx for any feed back I really am grateful.

possible bad idle control valve if has not high idle or flare when starting