In this tech article, the author says to paper clip the A and B terminal on the ALDL box... turn key to on position, wait 30 seconds, then disconnect the IAC.... then he says to start the engine.

My question is.... after disconnecting the IAC, do you also disconnect the paper clip and THEN start the car or do you start the car with the paper clip still in there???

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.

 

Take the paperclip out after you unplug the IAC but before you start the engine.

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91 Z28
Come see The Vicious...

 

Can anyone tell me the purpose of paper clipping the ALDL and waiting 30 seconds then disconnecting the IAC?

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.

 

If you listen to the IAC during those 30 seconds, you can hear it humming away. The pintle extends all the way, which I think means the passageways are completely open. (Or maybe it's closed? heh)

In any case, when the pintle extends all the way, that's when you need to check/set the base idle.

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89 iroc-z 305 tbi
k&n filtercharger, open element air filter. nuffin' else

 

Enkil is right, it moves the IAC into the fully closed position. That way all the air entering the engine is coming past the throttle plates. You want some air going past the throttle plates.

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91 Z28
Come see The Vicious...

 

Thanks guys.