Car starts but engine stops soon after

[Lordblood]

Yesterday while driving home, the Box started fine. However as I approached a stop light I braked and shifted into neutral to stop, then the engine stopped. After this the engine would start when I turned the key but right after firing up it would die. After about a minute of trying I got it up and I realized that keeping the revs up a little kept the car alive. It is in the garage now and is still having this problem.

I'm guessing the problem is the oxygen sensors, which I knew were getting old. But I wan to make sure it's not another new problem that has risen. I'm ordering oxygen sensors today online and I'll also clean out the maf too.