I have a 2012 Mazda 3. Never any issues really, and been running fine. Today I went out and started the car. It ran for about 1 minute or so ( i did notice a little jumpiness to the RMP gauge), then it died. I tried a couple times after to start the car, and it dies about 1/2 second after turning over. The car sat for about 15-20 minutes while i was doing a little research, and I went back out to try again. This time the car ran about 10 seconds and died again, and once again any time directly after it would die after about 1/2 a second. Any good ideas of what this could be. I thought about the battery at first, but if the battery is bad would it even start or just do that clicking thing when trying to turn over. Thanks for the help!

 

The first thing you need to check is for DTC at the diagnostic connector , do not use a blue tooth scan tool. Then using the scan tool go to monitors and check them. By your description you should find not only a DTC or DTC in pending but which monitors are not in readiness state.

Anything less is not how you star to solve your problem.

 

Welcome to the forum

 

If you have a scan tool that can give live data, have a look at fuel pressure.