Turbo Actuator code

[Palazon]

Ok, here's the story.... 2009 Pete, ISX engine. Recently started dropping a Check engine, Turbo Actuator. Note: code only appears after engine temp is 160 or higher.

Background: Replaced Turbo, actuator and EGR cooler @ Cummins NW about 15 months ago. They performed an EGR clean out. Last fall, replaced DPF. Last month, new DPF injector.

Performed EGR tune up but only replaced Delta P sensor (Thanks for the vids, BTW). Intake pipe was filthy. Code remains and prevents Regen.

Please keep in mind that I do NOT have an Insite program and I can't afford one. I have about $1k left in maintenance accounts. I'm a west coast runner, so a delete is not an option. :dodgy:

Should I go ahead and start replacing the sensors or is there any tests I (a shade tree mech) could run to pin them down?

Thanks in advance.