Stall issue?

[graessle]

Hey i have a 2004 sport trace and for whatever reason when i drive typically at around 2500-3000 rpm all the rpms basically disappear for a split second and then comes back causing the truck to jerk slightly, occasionally it does it as i am getting into it but not too often...i would assume it is motor related but not sure. Any advice appreciated

 

[05dakotatrac]

Throttle position sensor. I think it "skips" from no throttle to full throttle it should show a fluid resistance measurement from closed to open