Hi, I have a 2000 Dodge 4X4 with 5.9L. been tiring to get it started. As I said no spark at the coil, I know the coil is good it starts my other Dodge. I test the wire that supplies 12 volts to it. I hook a volt meter to it and have my helper crank the motor. I get 12 volts but it quickly goes to 0 and doesn't get the switching signal from the PCM. I have replaced the crank sensor and the cam sensor. The ASD relay from the Dodge that's running didn't make any difference. The truck has been sitting all winter in the garage. Could there be a short somewhere? between the PCM and coil? Any help would be appreciated.