Please help, I'm new and my magnum will start but shut right off, if I wait till 4-5 seconds on the on position.. It starts and stays on.. I know it has something to do with maybe chip.. Or transponder ... Or module... Has anyone else exp. This?? What can I do without paying out the butt??

 

Possibly a cranshaft sensor going out. Any codes? Do the key dance to retrieve any stored codes...

on
off
on
off
on

Codes will display in the odometer are

 

Ok so I finally took it to dealership.. I paid out the butt.. The WCM locked up and had to be reprogrammed with a new key... At least I'm Rollin in my magnum safely again! Thanks for the help;0)