Originally Posted by Warlock III
I'd lean towards the upstream 02 sensors. I know you mentioned that you replaced them but that doesn't mean they are still good. If they were purchased from just about anywhere and under a year old you should be able to exchange them.
I wouldn't mess with the throttle just yet because I've seen 'em "adjusted" only to have to put it into gear at 1100 RPM once it's warmed up.
Think i got this figured out, when i put in my new IAC valve, i noticed i had the same results driving around the block for 15 min or so, kept dying at stop lights. Well yesterday i had to make a run to the dump, which is a 40 min drive, sure enough it died at every light on the way up, than when i got to the dump there was a wait, and sure enough it idled, did great the whole way home. This morning ran great, i think the computer relearn took a little longer than i thought it would, and i just kept messing with it rarther than driving it for a good period of time, now im going to a shop today to get fuel sync dialed in, im hearing 4+ or should i stay closer to 0 +- 1, i do have a slightly bigger cam in? They called it a RV cam?