Hi,a fellow member gave me your name. Hope you can help me. I have a 2005 lariat 6.0 with a/c issues. When I turn on my a/c the truck surges rough idle and wrench light comes on, I loose pedal response (codes p0108,0403,0405,2104,2123,2138,2139,2140)...I installed a new compressor, accumulator, low pressure switch, I reprogrammed PCM back to stock with newest version, I swapped the PCM, I swapped the a/c controls, I pulled off baro,icp,ebp sensors and it still does the same thing. The truck runs good except when I turn on my a/c. When I pull off the low pressure switch the a/c controls come on and air comes out of vents, I'm guessing my compressor is not kicking on though. Any suggestions would be appreciated. If texting or calling is easier, my number is 225-802-3992