My pickup has been dying when it idles and RPM's are jumping everywhere. Have a feeling it's a sensor just not familiar with any of them. Anyone have similar problems?

IAC probably. Clean the throttle body while your at it.

That doesn't really help.

Idle air control valve. It controls idle. Attached to the throttle body.

Download the service manual, always the first step.

Googled would have helped you find it in 3 seconds.

Take off your air hat
Its on the backside of the throttle body
Need a t-15 or t-10 torx screw bit to take out the two screws that hold it in.
If its anything besides squeaky clean brass, take brake clean or similar and spray up the nipple. Wipe gently till clean with a rag being very careful not to push the nipple back in. Reinstall and done.

Leave the battery disconnected while you are cleaning it. PCM will relearn it.