Hi Guys!

My car has a rough idle and sputters from idle till about 1500rpms.

It runs fine from 1500rpms to redline even under hard load without missing or anything. It even has plenty of power.

Here is a list of what has been done:

New Plugs and wires(AcDelco)Dealer installed
New EGR Valve(AcDelco)
New intake Air Charge sensor
New Optispark(AcDelco)Dealer installed
New Water Pump
Cleaned the Throttle Body and put new AcDelco seals in it.
No Vacuum leaks that I can find

The Dealer said the O2 sensors are Okay! I know if I unhook them it doesn't change the situation.

I need Help!

Thanks Lee!