Rpm bounces while moving

[Chamberpains]

What is your fuel psi doing when this happens?

Is this a real fast drop? Almost a stutter? Or slower?

Did you put your laptop up on the dash and watch the TPS voltage? Reason I ask is I don't know what the recording rate is when using graphical recording. On my cm870 its retardedly slow and my TPS voltage drops were very fast. The graphical monitoring wouldn't catch it happening. I had to monitor just the live feed using Insite of the sensor alone. It would drop out so fast that it only dropped .3-.4volts. Not enough to kick a CEL but enough to cause the engine to stutter only when moving the truck. Ended up being crappy sensor wires around the back of the engine.