Alright folks, have a 7.3 that would break down every 2-3 miles on me. Since then I've replaced the icp, ipr, cps, fuel filter, and thermostat and now she doesn't break down anymore but idles rough and upon hard acceleration skips a beat or hiccups if u will.

Truck has a ts 6 tuner and upon turning it on any of the higher setting this problem gets noticeably worse.

Did I buy a bad cps or what is causing the truck to act up?

 

Have you removed the chip ? If not, try that and see if the issue still happens.