My car is an auto idle is around 550 but sometimes it like vibrates like its jerking real slightly, like the idle is fluctuating between 550-575 which makes the lights on the dashboard to flicker a little what could be up? I already clean the TB.

 

I have a similar problem, think its the knock sensor, check into it... cant hurt.

 

Already replaced the knock sensor because that was bad when I first purchased the car last year.

 

When did u last check/change ur Plat. Plugs?

 

I tihnk my idle is 600.

 

mite be your coil or lazy injector
have the same problem

 

i have the EXACT same problem...it sounds kinda lopey almost...but not a good lopey...goddammit, i think something's real weird with my car...it only has 25.8k...

 

WOW that low of miles and u have that problem, i could see if it was on the high milege maxs, i wonder if it has somthing to do with the weather, prob not but hey anything is posible.