The motor of my Dodge Intrepid 2

5.0 volts at those sensors does not mean they're working. That's the supply voltage. You also have to check their ground wires and whether they're producing signals. The fastest way to know that is to see if the automatic shutdown (ASD) relay is turning on during cranking. Measure the voltage at any ignition coil or any injector. You should have 12 volts during cranking. Also check for stored diagnostic fault codes.