The idle speed is computer controlled on a LT1 engine. If it is a little high, try checking for vacuum leaks.
Idle control sensor on the driver side strut tower. The cover should be blue.
the idle is set by the comp so u need some sort of programmer
it should be 1000 rpm
The idle is control by the idle air control motor from outputs from the Engine Control Module.
throttle positioning sensor, egr, idle air control
idle speed for a 99 Tahoe
The 99-2002 camaro 3.8 V6 doesn't have Idle air control valve. It is drive by wire control. Many of the parts dealers have the wrong data that 95-02 3.8 camaro have the same Idle air control valve location, and sell the wrong part.
40 on idle