This took me about 7 hours. It's related to this thread. https://my350z.com/forum/engine-and-...-part-2-a.html

Anyway, this works and there seems to be no vacuum leak and the SES light has been staying off since I started the car, going on 25min now and I also drove it. Also idle is consistent without any drops or surges so it means there is no vacuum leak.

It appears at least so far that the spark plug tube seals are sealing. :biggthumpup: I would thank R&D Factory for the seals since they are smarter than I am at figuring out part numbers but I'll hold off on that SINCE THEY DIDN'T MAKE THEM. I'm sure they appreciate the extra $40 I paid them for the seals THEY DIDN'T MAKE.

 

man thank you!
i'm about to undertake this for my 05 350z! This is exactly what i was looking for? did you notice any better mpg?

 

was your ses a p0507 code? high idle?

 

Had a code for a lean condition because the car was leaking vacuum.

 

For anyone doing this cut around the pcv valve cam lobe surface. Do not remove the cam lobe surface around the pcv valve. It will smoke on engine start up. Does not burn enough to see oil level dropping.

Or install an oil catch can with 5/16 hoses and plug the oil level reading holes. It wont smoke.

 

Also do not remove the cam lobe surface that is around the breather tube that sticks out of the motor oil filling valve cover. The tube connects with a hose to the air intake box. A T fitting can be used for the PCV valve and the breather to have them both connected to a catch can.

 

Where can i buy they spark plug tube seals?