On the injector rail,is afitting that will look similar to a valve stem on your tires. You will need a liquid pressure guage to see ifit has enough fuelpressure.
Start in easy part first, check the fuse or the wiring within. If its not a problem it maybe a bad temperature sensor,it burn a lot of fuel and choked the engine making it stall. Or else a bad gauge in dash. I hope this helped you a lot.
There is a fuse for that. Look in the owners manual, if you have one, or look for the fuse panel, on the back of the cover, it should show what each fuse is for, and where it is.