rico501

I need help 2007 is350 Car was jumped backwards. So I had to replace the fusible link which I did. Car didn't start after wards . I checked fuses and remembered that I had to put the EFI fuse back in that fell the day before when I was checking them. So I did that. The car started and the check engine light was on p2118. It had no throttle response. I then checked fuses again and noticed I think it was the ecu had a 15amp instead of 10 amp( I think that was the fuse ) so I fixed that. Car Starrett and then shut off and won't start anymore . It will only start if it sits overnight but then will cut off immediately. What could it be ????