Has any one ever seen this before and maybe know what im missing. I have a swap car here that has a normal 4L60E tranny in it like a camaro or truck style but I am running a 0411 with a 02 vette os. and have also tryed an 03 vette os that I have here as a spare vcm. not one off these vcm's will show any vss on the scanner but I have another spare vcm that I have an 02 Escalade os on I plug it in and the vss works. I can not believe I have to bad vcm's. What am I missing is there a setting with hp tuner that i may have hit or not hit by mistake. Any help is great thank you. P.S. I need to run the vette os the jeep already has the vette gas peddal and tac module in it for the fly by wire and I do not want to change it all out.