Where is located Idle Air Control Valve on camaro 99 v6?

On a 1999 Camaro V6, the Idle Air Control (IAC) valve is typically located on the throttle body. It's a small, usually cylindrical, valve mounted directly to the throttle body itself. You'll find the throttle body on the intake manifold, near the engine's front. It's usually connected by a wiring harness and vacuum line.

Because there can be slight variations depending on the specific engine and its configuration, it's best to consult a repair manual specific to your 1999 Camaro V6's engine code (found on a sticker usually located under the hood or on the driver's side door jamb) for a precise location diagram. A picture search online for "1999 Camaro V6 throttle body" will also likely show you where the IAC valve is positioned on the throttle body.