I am having issues with my 2008 G35x. It has been acting a bit strangely. Every once in a while, it will stall at low RPM (stopped at a light, making a turn, traveling in a parking lot). I tried changing the PCV valve, as I saw that this worked for someone else. A few days ago, my SES light came on. The code is P0014, which I understand refers to "Exhaust valve timing control performance - Bank 1." I have almost no experience working on cars, but I really want to learn. I'd like to try to do this myself and see if I can successfully fix it. From what I've read, there are about 6 causes. It seems that the most likely are a bad camshaft position sensor or a bad/dirty exhaust valve timing control position sensor. I was thinking that I would check the exhaust valve sensor first to see if it is dirty. If that is not the issue, I would proceed with swapping the camshaft sensor. If that does not fix it, I would then try replacing the exhaust valve sensor. Does that sound like a decent plan?

I was also wondering if you could help me locate these parts. It looks like I see the bank 2 exhaust valve sensor near the coolant reservoir (I need bank 1), but based on the service manual, that doesn't seem right. I was looking at the diagram, and it appears that the camshaft sensors and the exhaust valve sensors are in the back of the engine. I removed the engine cover and checked back there, but all I can see is the bank 2 camshaft sensor. I know that I may need to move something out of the way.

I apologize if I used incorrect terminology. I'm very new at this, so I'm just trying to learn as much as possible. I appreciate any help.

 

The most common cause is the cam sensor, followed by galley gaskets.

Pray it isn't galley gaskets.

 

I'm praying it's not the galley gaskets. My dad just had this repair done in May for his 2011 G37x. $3000 later.

 

Yep, I would start by swapping two of the cam sensors around, iirc they are all the exact same part on the HR motor. Just take a paint pen or something and identify which one might be bad.

If the codes doesn't move to the next cam then I would remove the cam actuator and inspect the screens for any debris, look down into the head as well there might be pre-screens in the oil passageway that need to be removed. You will need a new gasket for it.

 

I tried to remove the camshaft sensor, but it appears to be stuck. I had no issue getting the 10mm bolt removed. Is this common? I was going to try pulling it with pliers, but I didn't know if that was a bad idea. I ended up leaving the sensor in place and tightening the bolt. When I turned the car back on, the SES light went off. Is it possible that this was just from removing the negative battery terminal? If so, I'm assuming the light will come back on.

 

O-ring is probably crusted into place. See if you can get something to light tap on it to drift it out.

 

I just had the bank 2 code pop up with my 08' g35x; as i understand it it's the exhaust valve timing control magnet retarder (front of the engine) not the exhaust valve timing control position sensor (back of the engine)?