What I meant was while the car is running, pull the fuel pump fuse until the car dies. You now have no fuel and fuel pressure. Also, disconnect the battery.

The rest is removing the the pump and reinstall.

Ok, so I replaced the fuel pump....

still having issues. The same issues. After the car warms up, it can barely idle without dying, and dies at 5mph and under when coming to a stop. None of this happens when the car is cold. So far I've had the throttle body cleaned, replaced the fuel pump, changed the engine, transmission flush, new o2 sensor, and an oil change.

One thing I noticed.....when the AC is turned on it cools down a bit, but doesn't kick all the way on. Could this all be related to the AC? I have no idea at this point.

Have you cleaned the MAF sensor? Or checked the air filter? Stock intake I'm assuming.