Ive got an 07 g35 hr (130xxx miles) and i keep getting these codes. Ive also had P0011 and P0014 before. Ive replaced the cam sensor on passenger side with a new hitachi one and ive pulled the vvt solenoids to clean and make sure theyre working ( used powerprobe to test them.

Ive also replaced the oil and filter. Sometimes the car will sputter/ shake on start up for a few seconds then clear up.

Also after clearing the codes its good for 15ish miles then seems to go into limp mode and shifts super aggressively.

Im honestly stuck and cant figure it out. Im guessing something to do with gallery gaskets, magnetic retarders or possibly stretched timing chain? Any insight on this is appreciated.