Engine Problems

[gtfour43]

I would try cleaning out your throttle body and idle valve first. Try a good cleaner like AC Delco X-66A. Its a spray can. Just spray it all over the throttle plate and clean off the carbon, next spray it in the holes you see near the throttle plate. thats your idle valve. It will smoke like hell on start up so gas it a few good ones to clear it out. I do this on a lot of cars with a slow(lazy) idle and it works most times. I did one yesterday on a sentra that was idling roughly at 500 rpms. After I did it the idle went up to 800 in drive with a smooth idle.