i have the same problem on a 96 Grand Cherokee Laredo
I had Autozone test my 96 GC Laredo with a diagnostic tool. (They do it for free.) It indicated a faulty camshaft position sensor. But, when he looked up camshaft position sensor for a 96 GC on his computer, it said there was no such sensor on a 96 GC. Anybody have any ideas what the diagnostic tool is referring to and where to find it in the engine compartment? Thanks in advance.