Post by
Q451990 »
https://forums.nicoclub.com/q451990-u142.html
Tue Sep 24, 2002 1:37 pm
Dave,
I went over to Maxima.org and browsed around in their forums for a while. This sounds like a fairly common problem that is usually resolved with a good intake/ throttle body cleaning. Have you cleaned your intake lately?
Your car has an AAC valve (sometimes also called IAC "Idle Air Control) that's mounted somewhere on the plenum. It controls air going into the intake to adjust idle speed for various conditions - e.g. A/C compressor turns on, P/S pump load, and especially during starting. If this valve (or the throttle body, or any other intake system part) is clogged or has substantial carbon build-up strange things begin to happen. I'd recommend a complete intake system cleaning. This will involve removing the plenum, throttle body, EGR valve, AAC valve, etc and cleaning them with bottle brushes, trained mice, etc. with throttle body cleaner.
If that doesn't work, the Maxima guys sometimes point to problems with the MAF (Mass Air Flow) sensor - it's the box located just north of your air filter box with the electrical connetion.
Good luck!
Heath