[RojoRocket]

An exploded diagram and info from the FSB indicate that an "auxiliary air-control valve" assists in the control of bypass air when the motor is cold, as opposed to the "bypass air control solenoid valve" which controls bypass air after the motor reaches operating temp. It appears the aacv is attached via vacuum hoses to the throttle body on one side and the intake plenum box on the other. I'd be sure those hoses aren't hiding a leak, then assure that the aacv is operating correctly. It's referred to as a " bi-metal coil-heater and rotary valve" presumably switching off as engine heat/coolant reach optimum.
The bacsv appears to be on the underside of the throttle body and would probably require r&r of both to clean. A Trouble code 24 appears associated with the bacsv troubleshooting. Have you pulled any trouble codes?

Glenn