Idle issue

[STEEDA96]

currently the car has a MAC cai, BBK 75mm tb, BBK intake plenum and flowmaster 40s. The car originaly idled around 600 rpm after all the modifications. I attempted the idle correction steps on the main sn95 page from ford racing 2 times now and both times i wasnt satisfied. sure it would raise the idle, but after hitting the gas, it would stick the idle to about 1200-900 rpm for a little while, then drop back down to wherever i set it. This morning, the car had a hard time holding a steady idle cold. does anyone know any other process to adjust the idle but maintain proper rev motion. thank you. ry

 

[smasher41]

disconnect IAC, set your idle to what you want with the screw on the throttle body.

disconnect battery and let it clear memory (about 30 min)

 

[STEEDA96]

well today i backed up the idle screw all the way out till it was about touching the throttle linkage,hooked the modis up and desired idle speed was about 560. The idle with the screw all the way out was pretty much the same, so i guess ill just deal

 

[AaRoN]

Have you cleaned your IAC? MAF?