unusually high idle

[revil86]

ok so i did an oil change on my 93 Q like 800 miles ago and have noticed that the idle has gone up for some reasonon a cold start, the engine idles ok, but then i drive it with the AC, shut off the AC then the engine, then start it hot and the idle goes to like 1800 RPMs. wtf? all fluids are ok, i dunno what whats upits super annoying, especially in traffic cause the car will drive itself.anyone know whats goin on? im totally cluelessi searched previous posts and am still confused

[driverdriver]

a moderator should move this post to the q45 section or the Infiniti tech section where it will be seen by all the Q gearheads.

[96Qowner]

Here's an old thread on the subject:

zerothread?id=101111

Wes must have solved the problem, but I don't remember where he posted it. My first thought, of course, is that you bumped something during the oil change, maybe a disconected vacuum hose, or a connector. It's tight in there. Take a good look. Mighty coincidental.

Been doing some searching for you and also came up with this:

zer...age=2

The last post is a diagnosis procedure from the FSM:

"(diagnostic procedure 33. EF-EC 176) and it talks about unplugging the MAF, and then starting and running the engine at 2000RPM for 30 seconds, and if the engine speed drops then its an air leak....

Quote »

1. Disconnect Mass Air Flow meter harness connectors2. After starting and running the engine at 2000 RPM for at least 30 seconds, does the engine speed drop? --------> Discover air leak and repair."
Modified by 96Qowner at 1:37 PM 8/12/2005

[maxnix]

ok so i did an oil change on my 93 Q like 800 miles ago

Did you do it hte proper way from the bottom?

Many opportunities to dislodge connectors and such when attempted from the top.