That tank isn’t pressurized so as long as the cap stays on, it’ll work fine.

Also. These newer cars will disable several systems one one goes bad. ABS and traction control will be disabled together. Check on Amazon for your connector. Try and match the pictures to the one you have.

I don’t know about your car but it wasn’t that hard to change my 4 injectors on my accord and it took a couple hours. There’s YouTube videos on how to clean your injectors with carb cleaner, tubing, hose clamps and a 9 volt battery. You have to take them out first though. And I got the injectors at a junk yard so I got some practice removing them on a junker.