May have found the solution to the problem. After looking through the wiring diagram and mulling over what the dealership had said about the MAP sensor sending the wrong voltage, I wanted to see if it was the voltage going to or from the PCM. So tested the voltage from the PCM and it was within limits but when I tried testing the voltage coming from the MAP sensor I couldn't seem to get it to fluctuate with vaccum. So I looked in my Haynes manual cause I remember someone told me that the MAP, EVP and TPS all shared the same wiring, and found out that they all shared a common ground wire back to the PCM.

Anyways decided to rig up a temporary jumper wire from the ground wire to the negative terminal on the battery. Lo and behold the truck runs like a dream. Let it run for about 15-20 minutes while randomly taking the wire off of the terminal. And everytime I took it off the truck would start to act up, but when I put it back on it'd even out and start running right again.

So that means I have to trace back this wire and see where it's acting up at, and hope it isn't in the PCM. My question is does anybody know if this is a ground wire that is controled by the PCM that alternates the ground in relation to the voltage or is it just a normal ground wire?

 

Voltage Referance = sent from ECU.
Signal return = Voltage ref. current returning to ECU after passing through sensor.
But the ground is what allows those circuits to effectively complete.

Multiple circuit gremlins tend to be ground related.