u/Altruistic-Chapter28

Hey my car has been sitting for 2 months and I’m getting codes p0090 and p0087. I’ve replaced my lpfp, my hpfp, and my starter. Then I finally decided to take it to infiniti and they said it could be my fuel rails and injectors, so I bought the injectors and rails myself and installed them with my mechanic but the car still won’t start. I replaced everything with brand new oem parts. Any suggestions??