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Wow, seems you have done quite the shotgun parts replacement to figure this one out. I have only one suggestion (happened to me years ago to my 08 coupe). Take your RCM off (FIRST TAKE NEG BATT CABLE OFF), and open the connectors ONE AT A TIME (take pictures showing where each wire goes into the connector for when you check and verify no damage) to inspect the 90 degree connectors that are attached normally to the pins on the RCM. I had (if I remember correctly) three or four that had separated at the 90 degree and was disconnecting occasionally. I further inspected those defective crimped connectors and speculated they were not crimped correctly (not aligned when crimped and cracked over time) during the wiring harness assembly. Once I replaced the damaged ones, the car hasn't cut off like it had since (except for a strange glitch recently that went away). Good luck!


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