Was just about to write a "bogging" thread until I decided to try my other keys.

My Grey key seems to have way more power than both my black keys. I’m guessing the dealer programmed them backwards. Grey being the fast and blacks being the slow.

When the black key is in it bogs pretty bad on acceleration…like it’s not getting enough gas. Cruises along nice an dandy until you hit the gas(Seems like it makes the engine miss too—runs rough on acceleration…even had a backfire). Even had a hard time going up a small hill(You would think that would be dangerous).

Anyway, what does the learning/limited key do to the performance? limit the gas the injectors are pumping? Wouldn’t that make it run extremely lean?