Does a 1999 dodge ram 2500 5.9 Liter gas engine have camshaft sensor?

No, the 1999 Dodge Ram 2500 with the 5.9L Magnum engine (gas) does not have a camshaft position sensor (CMP sensor) in the same way that many later engines do. Instead, it uses a distributor with a pickup coil that provides the crankshaft position signal to the engine control module (ECM). While the distributor incorporates components that indirectly relate to camshaft position, it doesn't have a dedicated camshaft position sensor like those found on later, more sophisticated engine management systems.