I have a 2002 nissan frontier that ran fine stopped at a gas station and wouldn't start again.

when you put the key in the "on" position, can you hear the fuel rail pressurizing?

if your battery is older than five will not charge up fully...needs to be replaced...they are no longer made from LEAD, but tin-antimony alloy...don't expect them to behave like lead...after every year degrades by ten percent...time to get a new one....when you do wirebrush the connection from the 1/0 cable to the ground and also assure good connection (300 amp area) to the engine block...this will enable your starter motor to have the amperage needed~....a new battery will take the hassle out of it~

Yes. Every once in a while over the last month it hasn't started but if I just try again it does. It was running fine no issues. And then just wouldn't start

I put a new battery in a few months ago. Replaced the connections and cleaned the terminals today. It was still trying to turn. Tried to jump it and then it tried to go. Waited to let the battery charge and then it wouldn't turn or anything. All other systems have full power

don't worry about the battery. you need to check and see if you have fuel pressure.

the red cable connection to the solenoid must be at fault if the grounding likes 300 amps~ wirebrush those connections too....it has to pull 300 cold cranking amps...if is anything other than a 1/0 battery cable will not pull the amperage needed to start your engine~

indeed, listen for your fuel pump...used to be a sausage on the side, but they kinda erupted into a shower of flaming gas on a roll over...since 1990 they are ALL located in the tank with an aggressive ASD relay...did not save Michael Hastings (who I think was murdered using his own car and some incendiary unknown extras)~

Fuel system is kicking on. Getting no sound or action at all from the starter. Everything else is operating normally. As I said. Was running perfectly and then just wouldn't start and now won't turn at all.