V36 Missing Hessitation?

[30ONA]

Hi All.

I have an 07 V36 (VQ35HR) and I think I have a very minor miss. When accelerating lightly usually uphill or hard acceleration I can feel an ever so slight sense that the power is not smooth and I can only describe this like a miss. There is still plenty of power but the delivery feels like it could be smoother. Before I go changing plugs ($100 for set of iridium's) could there be anything else to look at?

I have data scan but not really sure how to us it to identify this sort of issue (assuming there are no code issues).

Thanks.

[scotty nm35]

Just change the plugs, good chance they are flogged, or the previous owner skimped on them.

Gives you a good chance to clean the coilpacks and check the rocker gasket isn't leaking into the plug tubes.

[30ONA]

So I got the new plugs. Denso FXE22HR11 to NGK DF7H-11B. Just curious, why does my skyline have different plugs to the 350z when they use the same engine, VQ35?

[30ONA]

Got the spark plugs and off I went to replace them. Even got a new socket to fit as is has a 14mm hex which is tiny. So started on the passenger side and could only remove one plug. The socket seemed to be slipping of the hex. I though maybe the socket was too thick so I ground down the outside of the socket thinking it was fouling on the outside of the plug hole. Still no luck. So I stopped and put it all back together again. I have only replace one plug and didn't bother on the driver side as I'm sure I will have the same problem. I didn't want to strip the spark plug, thinking I'll have to take it to the mechanic and spend $200 on labour unless someone here can help.

Is there a special tool for this job that only Nissan has? Has anyone had this problem before.

[30ONA]

Just saw this in the workshop manual. Maybe there is a special tool.

"Remove spark plug with a spark plug wrench (commercial service tool)."