Re: IAC and EGR
The IAC valve is operated by an electric wire which operates the motor to operate the valves. There is nothing on the IAC valve to adjust idle.
To adjust idle you have to check your screw on the throttle body and turn it to the rpm you want it to be set at.
1979 Ford F150 4X4, 7.5L, C6, 38s Super Swampers TSL
1978 Ford Courier 4x4, 2.3L carbed, 5 spd manual, dry-rotted tires
1985 Ford Ranger 4x4, 2.3L FI, 5 spd manual, 29s Power Kings
1990 Ford Bronco 4x4, 4.9L, 5 spd manual, 31s Maxxis Bighorns