Problem w/ car shuttin off while driving
 

So im havin problem w/ my 07 mazdaspeed 3 shutin off while drivin, idk whats goin on, but it always happen when im in second gear, or sometime 1st gear. plus it shuts off while makin turns too, is it me havin the rpm to low, maybe thats y it shut off. idk is it the car. but it usually happen when i disconnect the battery for new installment to my car. So can anyone help me out, Thanks.

any check engine light or something like that?
I'd vote for a bad wire that's cutting power to a sensor or module when you're driving.

Ya my check engine is on. So do u think thats the problem? and do u know what wires is that, that is cuttin my power? and that funny to cuz my turnin signal also doesnt work, well sometime, u just cant hear the clickin sound when i signal, so im also think maybe there is a wire problem, but if can help an lettin me know what wire is that will cool. Thanks