Stalling or try to reverse it cuts off?

This is common when the throttle bore needs to be serviced. IAC motor needs to be replaced or you have a vacuum leak. here are two guides to help you fix the problem with instructions in the diagrams below to help you with your car:

https://www.2carpros.com/articles/throttle-actuator-service

And this guide, only do this when the engine is cold:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

This guide can help as well:

https://www.2carpros.com/articles/stall-at-idle

Can you please shoot a quick video with your phone so I can hear the engine stall? That way I can tell for sure what's going on. You can upload it here with your response.

Check out the images (below). Please let us know what happens.

I got the car diagnosed by AutoZone, it was a code P0300.

Okay, usually when this code is present it will be the fuel pump is going out or you have a MAF sensor that has gone out here is the location of the sensor so you can check it out. also, to check the fuel pressure you can follow this guide:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Fuel Pressure (Key ON Engine OFF) .................... 358-405 kPa (52-59 psi)


Check out the diagrams (below). Please let us know what happens.