I have an 07 Silverstone Base 6mt and for some reason after I serviced my throttle bodies, I noticed that my Z would lunge noticeably harder whenever I let go of the throttle, and push much harder after barely pressing it. For a week I didn't think much of it, but when I was revving to see what the reaction would be when it is in neutral, I noticed that when I rev past 1500, it will go back down normally, hit and stay at 1500 for a full second, then climb back down to 800. This happens when revving anywhere from 1600-5000rpms. Any ideas on this would be greatly appreciated.

PS -- The car is completely stock with about 44,000 miles, and no known problems in the past accept that it is probably due for a timing belt and air filter in the near future.

Thanks.

 

welcome to the forum. I have '07 base as well, mine will do that not all the time, but once in a while too. nothing to worry about...

VQ35s have timing chains, not belts.

 

Wow I'm a noob, I totally forgot it is a chain. Thanks for the correction. Are you sure it is normal? Because it has only just now been more noticable for both me and the passenger.

Thanks for the welcome as well.

 

After servicing the TB did you get the SES (service engine soon) light coming on ? also did you try the Idle Air Volume Learning ? If not you can give it a try.. Link is below

http://www.nissanforums.com/l31-2002...0507-code.html