98 GS400 - Idle Speed Adjustment
#1
Advanced
Thread Starter
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
When I first start my car in the morning (it usually about 35 degrees outside), she idles at about 11 hundred rpms and doesn't settle down to 8 hundred rps til I've driven her for about 20 min.
Question: Is this normal?
She didn't start doing this til i tightened down one of my spark plugs and cleaned the throttle body with carb cleaner.
Question: Is this normal?
She didn't start doing this til i tightened down one of my spark plugs and cleaned the throttle body with carb cleaner.
#2
Driver
iTrader: (7)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I'm wondering the same thing...just changed all the plugs, cleaned the throttle body, didn't touch the MAF. Did all this when I rebuilt the starter.
I don't remember the car idling that high before the maintenance was done. Mine does settle down to a steady 800rpms in about 5 min after startup though. Also a 98 GS400.
Thoughts anyone?
I don't remember the car idling that high before the maintenance was done. Mine does settle down to a steady 800rpms in about 5 min after startup though. Also a 98 GS400.
Thoughts anyone?
#6
Lexus Test Driver
iTrader: (19)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Here's a picture from the non-VVT-i service manual that may be of help. It's not exactly the same as ours, but it's the same general idea.
![](http://i40.tinypic.com/14tn5f6.jpg)
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
Thread
Thread Starter
Forum
Replies
Last Post
Live4brew
LS - 1st and 2nd Gen (1990-2000)
17
01-12-07 04:32 PM
dandada2000v6
GS - 2nd Gen (1998-2005)
5
01-12-05 01:10 AM