Trinity T1000 MPG Boost tune

[RedFlyerWagon]

So I just got my hands on a Trinity tuner. Didn't want to do anything insane off the bat, so I plugged in the MPG booster tune in the preloaded selection. This is on an 05 Magnum R/T (Hemi 5.7). After installing the tune, the car idled very rough and RPM's would drop below 500. Driving around the engine was extremely erratic and sounded like a couple cylinders weren't working at all. This made me nervous, so I loaded the stock tune back on and the car immediately returned back to normal. Anyone know what would have caused this? It almost seemed like the MPG tune permanently put the motor into a full time MDS mode. That's my best guess. Again, any ideas?

[mikel]

this is a flash bug on early 05s, it happens at the dealer as well, simply clear codes to get rid of the 4 cylinder mode issue here or disconnect battery for a second.

Thanks