I have pretty much all but given up on the stock Jeep ECM. Its a great ecu, tough and durable, but as far as tuning support, there pretty much none. An those who can do it, will not share. This thread acted like it was gonna take off and go somewhere, but ended up smashing into a brick wall.

I have decided to instead, to convert it over to a GM 1227727 ECM. A few little mods to the engine (dist. and alt.), and hooking up the harness and I should be in business. There is way more tuning support for GM ECM's.