I started my car today, and the idle was different. Its supposed to be at 900 for the cam but today it ran at 500. I dont know alot about the lt1 but im guessing it isnt fuel or spark related becouse the idle is smooth, its just lower. I dont have any computer checking stuff or the knowledge that alot of you have so can anybody give me any ideas or at least an explination as to what might be happening? It would be very helpful. Thanks

 

yea this happened to me for a few days but once i drove it for awhile it went away..... strange lil LT1's

 

What about an O2 sensor?