Originally Posted by calongo_SS
I think it's gonna take at least an hour to reset it unplugging the battery. There are 2 fuses that you can pull, but I don't remember which ones, maybe someone else will chime in.
Yes it will take some time with the battery disconnected to make any kind of difference, not sure if it has to be the negative one or if either terminal will do. I used to leave it overnight just to get a good reset.
My battery was disconnected today (positive side) for my QTP header install and my radio presets remained intact after reconnecting as well but the clock was off/wrong, I think the radio has internal memory for a few hours of no power.
The two fuses to pull are the 'PCM BAT' and 'PCM IGN' I think but I like the overnight battery disconnect method better.