Yes, the PPE is a loader and is not physically connected except to load a tune. I had the ECM flashed at the dealer and the PPE was never reconnected after that, so that was not a factor. Currently running stock tune with nothing plugged in and it is so very slow...
02 Chevy CCSB D/A, PPE Tuner, MBRP 4"
95 Chevy k2500 6.5td mostly stock.
95 Chevy C3500HD Dump box 6.5td 4" exhaust.
85 K20, 6.2, T400, Bone Stock.
85 K10 Blazer, 6.2 performance rebuild, 700r4.
97 VW Jetta TDI, PP520 Nozzles = Fun 2 Drive.
85 VW Golf 1.6 Diesel, 5 speed.