1993 Intrepid 3.5l not starting..Please Help

Car began to run fairly rough, so I drove home, turned off the car and it hasn't started since. The first time I ran codes I got 13 (MAP Sensor) and 54 (Cam Sensor). I replaced the cam sensor and I now get codes 12 and 54. Car has a brand new battery.

I don't seem to get any spark out of the car. It turns over fine, but I notice that the tach doesn't respond at all when keying the ignition. I am not sure where to go from here. Any help is greatly appreciated!

loosen the upper timming belt cover on the passenger side and crank the engine over to see if cam turns or check if timming belt is loose may have bad water pump or belt tensioner this would cause all your problems and codes