I searched and could not find a specific answer for my car's problem. I have a 91si that the speedo does not work in. So I replaced the VSS. Still, it does not work. Before I replaced it, it was very intermitant. It did not bounce or surge. When it would work, it worked great. But as I said, it worked VERY intermitantly. My question is, is there somewhere else perhaps behind the dash that I should check into? Are there other suspect areas anywhere? Plugs? Connectors? I DO NOT want to replace that sensor again anytime soon!