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.

 

You used the wrong cam sensors. HR needs Denso cam and crank sensors. You can read my nightmare thread about Hitachi cam sensors how they caused extended cranking times and engine issues. First, get the right sensors, then check the ignition coils by measuring them with a DVOM to rule them out. I advise Hitachi IGC0003 coils as they work best in my HR.
Worst case scenario, your cam 'phasers' are worn out. My nightmare thread
Also, grab a Service Manual HERE

 

I appreciate that, im going to swap the cam sensors again with denso ones now and see what that does. Do you happen to have a link to some phasers i can order?

 

I never had to replace mine so no i don't. But i'm sure if you google long enough, you'll find some. Also make sure the crank sensor plug is not rotted away, they like to fall apart due to being so close by the exhaust manifold.

 

update on this, after more diag i figured out the cam phaser seems to be the issue like you said. Ive done some research and some people say the exhaust cam sprocket is "fixed" and the issue is being caused by the intake one because it has vvt. the confusing part is my issue is exhaust related. So do i replace the exhaust cam sprocket or intake one on bank 2