AEM EFI starting & tuning (Gen3 426)

:cheers: The Hemi, it runs!!! Many thanks to Cuda SRT8 for providing the original programs that came with the AEM/Mopar EFI system (how do I officially give thanks to a member in this site?). I immediately noticed that the Mopar version of the AEM Pro software didn't have a menu to configure crank/cam sensors, and so I didn't have to bother with that. However, the solution to my issue was much more simple and mundane.

When I installed the Painless wiring kit, I decided to use the electric choke circuit feed for the switched 12v source to power the computer up. I chose that source because it is on with key on, is low amperage (ECU "turn-on" needs only minimal amps), and of course was superfluous since I wasn't running carbs. Turns out this source turns off during cranking!! The ECU would simply turn on with key on, turn off when cranking, and back on after cranking; it couldn't sense the crank reluctor wheel turn and therefore couldn't sync ignition, preventing coil activation. I simply jumpered in a constant 12v source to the ECU "turn-on" lead and it fired up after several revolutions. It idled right up using the 392 start tune provided with the Mopar/AEM package. Since I have a 426, the AFR was kinda high, so I selected all the fuel map values and bumped them up to quickly bring it into a safe range. I let it warm all the way up: no leaks, temp stayed in range, and it sounded WONDERFUL!! It's a bit sluggish to respond to throttle bumps, but I think that'll tune right out... now onto that arduous task. :computer:

A huge thanks to all who've contributed to this thread. Now that I'm just about done with the major step of getting it on the road, I'm considering documenting my build in a thread here on FABO to contribute to the knowledgebase for those masochistic fools going the swap route. :thumbrig:

p.s. The 3rd party that AEM has passed support to for the "old" universal style Mopar ECU (grey box) is company a named Streetlights (626-338-3207). I haven't contacted them but have little confidence they'll have as much knowledge on this ECU as AEM.