When I turn the key on the fuel pump does not turn on, which I just replace a year ago, 3 months ago, and 2 days ago. If I keep turning the key on to off on to off, it sometimes turns the pump on one of the times. Ifthe pump turns on then the car will start, but when I get it started it will run for a few sec. and the the pump shuts back off and the car dies, any ideas???? Maybe pcm????

 

Check the fuel pump relay. Then if that's okay, swap out that 3 month old pump for another..You should have warranty if you bought a filter w/ it.