our in house electrical guru 67Dart273, seems to be off the clock at the moment LOL so i am going to say that somewhere between the relay and the NSS, the relay is not getting a good ground because you can start it at the relay.i recently had the same issue with my duster, having the exact symptoms as you. you can take the NSS connector off and with a piece of wire, jump the connector to see if thats the problem. something to check for now. 67 may jump in here and help in a bit.
