I have a 1996 Chevy s10. I have a problem. When in driving down the road and take a corner or go over a bump the truck shuts down.i have changed the ignition switch and check the positive and ground cable at the battery. I cleaned them. I had this problem befor the ignition switch went out. The only thing that I have not done yet Was wiggle test while running.any idea or leades to my problem would be nice thank you