Rough idle and sometimes stalls

Do you still have the same codes and if so, what are they?

Also, we need to check for a vacuum leak and see if we can find anything as that is the most likely cause of what you are seeing. Here is a guide that talks about this.

Let me know and we can go from there. Thanks

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

Yea, I tried the spraying carburetor cleaner on the hoses and nothing changed. The codes it gives now are P0172 and P0101.

Also, my spark plugs were really black so I changed them.

Okay. That is great info. You don't have a vacuum leak because the P0172 is actually a rich condition not a lean condition. So this means you have too much fuel. The black spark plugs would confirm this so I attached the testing for this code which is what we need to run through to find the issue. More then likely we have leaking fuel injectors or a MAF sensor issue but we will figure that out with this testing.

Due to the P0101 I am going to suspect we have a MAF sensor issue but since you replaced it is most likely wiring issues or a control module.

Sorry. I forgot to attach the testing for the p0101 which is where I think we will end up going so you can actually start with this. If it is not wiring then the testing points to a PCV issue so we have a number of things to check.

Okay, I changed the fuel injectors and I noticed the car idles normal now. But now after changing them I noticed some white smoke coming out of engine bay and exhaust . I’m not much of a mechanic so this is new.

White smoke may just be condensation or water getting steamed out of the exhaust however, if it does not go away or get better, we have a new issue.

https://www.2carpros.com/articles/white-smoke-or-steam-coming-from-the-exhaust-pipe

If that is the case, we need to get a new post started because others will not find this issue under this heading.

Follow that guide and let us know what you find on a new post and we will work through this. Thanks