new at diesel, i work at a gm dealership (yeah for me lol) anyway we sold a company a cab and chassis in 03. the vechicle is back in the shop for repair.The resolution was a ecm, the problem is the truck had a valet/dsp2 switch added elsewhere. I am trying to get the high idle func back operating (is NOT equipped with cruise.) I have tried the dsp2 cust calibration-but there isnt a high idle table avalible for func #2.I am beyond brain fried here. I can not find in the tutorials for either adding a table or installing a valet switch. PLEASE HELP!The truck is a 2003 2500hd with 6spd manual, it has a added on muncie pto. I just need to get a high idle func on this truck! Thanks again...really any lead way help is greatly appreciated