I swapped that one for another while at the local parts house & the second one didn't work either. It ended up being the pin diameter on the ignition module. They are too small around & don't make a connection to the connector on 2 of the 4 pins. You could see where the other 2 slid on the terminal but the other 2 made no marks in it. Took a dial caliper & the new ones were slightly smaller.
Going to order a Mopar Performance unit & try it.
I never woulda guessed! I learned something today. I thought something was fishy that the new ECU did not work (I mean it was a simple plug and play deal). EDIT get a chrome one, not an orange (or faster yet go back to your parts house & take your calipers with you)
