I'm planning on finally setting my IAC right. I have the directions for setting as per the thirdgen.org article, but it's been less than helpful for me. This is what I know has to be done:

1) Bridge A+B on the ALDL
2) Disconnect sensor feed on TB
3) Start car
4) Adjust setting to ~ 450 RPM
5) Turn off car
6) reconnect IAC sensor feed
7) Start car

This is all easy and makes sense to me BUT I can't find that *^%# screw to set my idle speed! Where is it on a 2.8 EFI third gen? Thanks

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87 Firebird 2.8 w/!MAF/!CAT/K&N Filter/Bosch Platinum +4/Neihoff Platinum
Wires/Blue Streak Cap+Rotor/Crazy Sound System/Crazy Driver/

 

its behind the throtle body were all your cables attach to it. id say leave it every timei adjusted it i had nothing but problmes and had to rase my idle to about 1000 rpm for it to run good

 

yeah, you know how to rev the engine by pulling on the throttle cable right??? the cable is attached to a metal piece that, when idle, rests against the idle SCREW. although i've heard that adjusting this won't do anything because the idle speed is computer controlled.

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Dan
1990 3.1L RS
80 Series Flowmaster
It's fast(er than a 3 cyl metro)