Codes P1174 and P1175, vacuum leak?

How does the engine seem to run? If okay, then continue below:

P1174 refers to a fuel trim cylinder balance malfunction in a vehicle's engine control module (ECM). This code indicates that the fuel system is not operating properly, and the engine may be running too lean or too rich.

P1175, on the other hand, refers to a fuel system lean during acceleration code. This code indicates that the fuel system is not providing enough fuel during acceleration, which can cause the engine to hesitate or stall.

This guide can help:

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

I would check the fuel pressure because you may have a weak fuel pump or the MAF sensor needs to be replaced.

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

Fuel Pressure (Key ON, Engine OFF) .................... 384-425 kPa (56-62 psi)

You can get a fuel pressure test kit from the auto parts store, they rent them for cheap or free. Here is the location of the MAF sensor so you can change it out. Can you please shoot a quick video with your phone so I can hear the engine running? 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.

Thanks for the video. The engine looks like it is running fairly well, which is good. The lack of power could be low fuel pressure, can you check it please? I have also seen a bad MAF sensor cause this as well. Don't worry about the smoke test, in most cases it is normal for the smoke to find itself inside the engine. Check the air filter as well and let me know.

18 PSI is low. Is this the pressure when you turn the key on or when the car sits for a while? Also, when the MAF sensor is too far gone cleaning it will not help. I would try a new sensor.