03 i35 random cutoff, no codes!

[jrano89]

Hey guys, new here!
Here's the issue, have an 03 i35 at almost 119k miles. I have this random issue that has been driving me BANANAS! At random times, I'd round it to at least once a month, my car cuts off as I'm in a drive-thru, or in traffic. Turns on fine, but no engine lights come on, and no codes show up. There's no difference in temperature, or how long my car has been on. I've driven over 250+ miles straight without a hickup, has only happened at stops, or going extremely slow. Only other recurring random issue is, SOMETIMES, my car doesn't start, pumping the gas pedal doesn't help, but I noticed it happens less often when I use chevron vs shell or any other gas station. Definitely happens a lot more often at a quarter tank or less, but happens even at full, hence the mention of it. I have not had much done, had spark plugs changed maybe at 113k, and its happened even before that.

[jrano89]

Any help or guidance is much appreciated!