My car will crank but when I put it in gear it kills . The car just dies

Hello, When vehicles stall from engaging reverse or drive, there are many possibilities that come to mind, but I will advise checking for obvious vacuum leaks or physical damage before sending it to a shop. The diagnostics on this car are going to require a professional grade diagnostic scan tool, and may take some time. Using a Mazda specialist, or an ASE certified technician may reduce the amount of diagnostic time needed. Here is a list of facilities in your area that are certified and trusted: http://repairpal.com/mazda-within-10-miles-of-ponchatoula-louisiana-70454