I think it means you need to go to the ECM menu and program your custom file to ECM as you did when you first installed your MM3. But I would check with @MM3 Power. When did you receive this firmware update and what version is it? I am currently running firmware update 0002.03.02 I assume this is the most recent. If anyone knows please chime in.


2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. MM3 tuned by Double R Diesel. Oil Bypass Filter, 50 Gallon auxiliary fuel tank.

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