The lights dimming slightly is due to the low idle. Have you chcked for vacuum leaks? Also, have you had the computer scanned for trouble codes? Most nationally recognized parts stores will do it for free, so I recommend having it done.
To me, it sounds like a throttle position sensor problem, but I can't be sure without the scan.
Let me know what you find.
Sunday, December 28th, 2008 AT 12:31 PM