u/Zombozo911

Has anybody had an issue like this? I can’t find anything wrong when I scan the system but there is a knocking sound around 2k RPM. Just over 89k miles and just replaced all spark plugs, coils, and fuel pressure sensor. I believe there may be a vacuum leak but I haven’t bothered fully rechecking everything I put back together yet as it was getting dark.

Any tips are appreciated. I need to get this one running so I can get rid of my other one that is costing too much money and won’t pass inspection past this month.

Hoping this isn’t rod knock or something else serious that could make this a money pit.