I am going to have to get my computer flashed to activate the OBD-II. I bought the AE scanner and doesn't seem to want to connect to the computer, it must still be an OBD-I system. The only thing that is confusing is that the computer is a Reman.(printed on the computer) and the code on the side of it is SOD4 which is for a 1994, but a sticker under the hood says PCM has been reprogramed, part # F6TF-AUE, Dealer # 078633, Dated 1-7-99. I looked up the part number and it is a computer for 1996 49 state, high altitude, Canada. My truck is a 5 speed manual, does any body know what is the best code is for my truck. I was told that you have no choice in what code they flash your computer, just whatever code is the most up to date in there system.