I have followed all of the steps except pulling the PCM and checking continuity; I’m worried I’m going to mess something up.
I was getting proper voltage to the actuator and did a process of elimination with the other connected components, and everything seems to be working as it should, no shorts, no bad plugs, and no bad wires from what I can see and what I can test.
Today, I drove the truck a little to see how it would drive, and it had a full boost and EB for about 6 miles; then, after shutting it off and restarting it, right back to where I started, half boost and no EB.
Batteries are good, map sensor replaced, actuator replaced, no blown fuses; I don’t know where to go from here.
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