So earlier today I finally got around to replacing my IAC which I had figured was the root of my idling issues, the issue was a rough idle before warmed up, which would last around a minute, afterwards it would run fine and had a decent amount of power, I could spin my tires if I floored it from a stand still, and had no problem getting up to highway speeds.

I replaced the IAC, and I started up my truck and the quality of the idle improved, but now it just idles high and it still has that warm up time before it settles, as I was driving home, my truck was struggling to get up to highway speeds, and after I got onto some back roads I tried to peel out and it didn't spin the tires at all.

Any ideas?

 

Check fuel pressure. Seems like the common problem lately.

 

I had a similar problem with my 94. I changed my IAC and then my TPS and the problem got worse. I then cleaned my throttle body and noticed my plates were a little too far open. Started my truck and let it warm up then adjusted the plates till I was satisfied with the idle. BTW I did all of this AFTER I was 95% sure it wasn't anything else.