Where is the iac sensor on a 2004 civic si?

The Idle Air Control (IAC) sensor on a 2004 Honda Civic Si is typically located on the throttle body, which is situated on the intake manifold. To access it, you may need to remove the engine cover and some surrounding components for better visibility. The IAC sensor is usually mounted with a couple of screws and has an electrical connector attached. Always consult the service manual for detailed instructions and safety precautions when working on your vehicle.