I never said anything about breaker points. As with almost all innovations that directly benefited car owners, Chrysler was the first develop a fully-electronic ignition system. Your ignition system was first used on Dodges in 1972, (I had a bunch of them), and on Chrysler's and Plymouth's in 1973. I am asking about the pickup coil inside the distributor that triggers the ignition module. Some versions used two of those inside the distributor. One was switched into the circuit during starting, then the other one was switched in once the engine was running. The switching was done with a relay, and that relay is a good suspect for an intermittently-failing ignition system.
Most of these ignition systems used only one pickup coil. A real common problem on either system was the dual ballast resistor on the firewall, but those will never fail intermittently. Once one of the resistors burns out, it will never magically heal itself again. What you might look for though is a rusty terminal that is creating an intermittent connection. You can identify that by wiggling gently on the connectors while the engine is running.
Next, check the ignition module to be sure it is bolted solidly to a rust-free point on the body sheet metal. That is one of the electrical connections.
Did you do the spark tests I described earlier?
Tuesday, February 7th, 2017 AT 2:50 PM