well i have a data loger "ecm852" and i have takin a few logs befor wenter hit. i found out i had a bad 02 so i changed that and got my IAC couts around 10-15 at idle...seems to run better!! but i still have a ton of tunnin to do i think, im very new to the hole prom tunin thing, so bear with me please im tryin to learn!! it seems that after the motor gets nice and warm the idle will start to hunt in P and N, and in drive it will want to surge a bit. seems that the iac counts will raise also. i would love to learn and do the istrich but i dont feel im to that point yet. anyways any ideas on what i can look at to help solve this problem....is there way thing i can look at on a log?