[Alex]

...turn off after i switch gears.? This mainly happens when its cold, but its never done this before and I know its a minor problem but it needs quick attention.

 

[COLD STEEL]

you should take it to get looked at to a shop that has a OBD2 scanner/reader so they can see what it is and is not doing. This problem seems to have too many variables to start guessing and possibly confusing you with our guesses