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Originally Posted by Locke
AEM is plug and play.
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In addition to the AEM EMS, there's also HalTech, but neither are plug-and-play. Both do not come with any support for the 420A DSM, so you're on your own there... no directions, no tech support, not even a solid base of others who have adapted EMS/HalTech to their cars.
You'd have to have an extensive knowledge of either system to get it to work on our cars. Plus, the timing set up will be an absolute pain since we have such an irregular tooth pattern on our cranks. From what I've heard, you'd have to set up a trigger wheel on an indexed UDP for the crank position sensor, and somehow modify the cam position sensor too.
For me, the choice between MSnS and EMS/HalTech is clear. Why spend three times as much money for something that comes with absolutely no support, when you could spend $300-$400 for something that comes with no "official support," but rather, a wealth of online information? MSnS has been thoroughly explored by many of the 420A DSM gurus, and the amount of support you can find in the form of online forums is astonishing.
In any case, AF/X is the only direct-replacement, plug-and-play solution that's currently available. Each of the other systems require a solid understanding of their underlying properties before even beginning the installation.
About that Mopar Performance ECU... it was designed for the Neon, which flows in the complete opposite direction of our engine. There's your first problem. The ECU will be expecting signals from sensors that are outputting something very different than the Neon's sensors. Perhaps sensor data from the crank position sensor and other bottom end sensors are compatible, but I can guarantee that the top end sensors from our car will not interface with the Mopar Performance ECU correctly.
Beyond that, the pin orientation on the connectors is different. This is a minor problem if you have the patience and know-how to cut and splice every wire on your wire harness to a new location, but it still would have been something to be considered if this would have otherwise worked.
