That setup rocks
I'm thinking your OBD-2 vehicle may have some provision for PTO idle control (even w/o a PTO), which is actually 1, 2 or 3 electric switch setup for various idle speeds tapped at ecm, it disengages in vehicle put into gear or when brake pedal is depressed. Not sure, but a little research into your OBD-2 system could answer the question if yours has this provision, it would beat a manual control cable IMHO
Originally Posted by unwiredadventures
1999 GMC K2500 BURBAN, NAVISTAR enhanced 6.5 td aftercooled, dual alt's, PSC p/s pump w/HD cooler, redundant FSD's, HEATH program, turbine/downpipe wrapped, 4" SS exhaust, real time OBD2 data logging w/device controller, EVANS waterless coolant @ zero (0) psi & 135 gpm pump, 4L80e w/kevlar and premium steel w/cryo treated input/output shafts running @ 100 deg. F & 140 deg F towing, all synthetic fluids, AMSOIL bypass system, MileMarker hydro, dual fuel tanks, and on and on, questions PM me.