Anyone have any advice on what would cause a 2015 silverado to throw these three codes, p219b, p0050 and p0300. My truck misses when its cold but as soon as it warms up the check engine light will go out and it'll run fine. The p219b says its a fuel injector but i'm sure it isn't that beings it runs fine after it warms up. I've run Lucas fuel injector cleaner through it several times and ran some sea foam through it.