1997 Silverado Z71 5.7 Vortec

So my truck has been doing this thing where it sputters at lower rpms. It idles fine but occasionally it does this. Normally I've just put the truck in gear and I'm moving at parking lot speeds. Tonight I got back to work and was sitting in the truck idling waiting on everyone else to catch up and it sputtered hard and the SES light came on. I shut it down and checked for anything obvious. I'd checked for lose cables and plugs a few weeks ago. I didn't find anything and thought it may have been bad fuel or something. I scanned it and got P0107, P0122, P1107 and P1122...I'm thinking it's time for a TPS? Any opinions?

Additional info...it didn't matter which direction of travel for the original sputter...it did it in drive or reverse.

Also, the trucks shifting pretty hard right now.