Ok, I’ll try to explain this.

last Friday I went to start the truck for the morning warmup. I got a message on the MM3 indicating the real-time tune failed to load and the last key on tune would load. Not in these exact words.

I then got a fault 20004 saying the SD card files couldn’t load.

the background of the MM3 is gray now instead of the American flag background, but all the gauge settings are there and working. I can navigate the MM3 but can’t access the novelty tunes ( whistle, lope, 12v, normal) it appears I can adjust power settings but I haven’t changed from the 5 setting.

here’s what’s weird. The truck is running with ALOT more power than it was previously with the “normal” sound setting tune in setting 5. It now Sounds different, and makes A lot of pre-boost black smoke. It feels a lot more powerful!

question is, what tune did it default to when the SD card became un-readable to the MM3? As much as I need to fix the SD card issue, I kind of like the way it’s running, which is completely different than it was before the SD card went out.

ive researched but can’t find anything