2001 Maxima wont stay on

[Rellik27]

So yea the car fires up then dies, if I keep the accelerator pressed it stays running fine but shuts off once I let go. The only code I get is for the knock sensor. I was driving and it just shut off on me it wouldnt start again. While waiting to get towed I tried again and it stayed on but the second I touched the pedal it shut off. Ever since, I can only get it to stay on while having the pedal pressed. Well thanks for reading and I hope someone can help me out

[King Ranzo]

Hmm. Maybe it's your alternator. I'd get it load testing to make sure, but that's what I'm thinking.