My buddy who's got an IROC 87TPI failed his first emission test here in toronto. He's air tubes are removed but he kept the pump on the car and the line from the cat is still in the engine bay but plugged.
Anyway, he ran a piece of tubing from the Air pump directly to the line-to-the-cat and whamo!, he passed!

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89 GTA
305 TPI
WC 5spd w/3.45 rear
Accel Cap & 8mm Taylor's
MSD6A Ignition
Accel Supercoil
Custom Cold Air Induction
Jet Airfoil
K&N Airfilter
160 deg stat/fan switch
Hypertech Thermomaster Chip
Steel Rad
Cat back 3" Exhaust
HiGh FlOw Dynomax Cat

 

FWIW, I've taken everything A.I.R. off of the exaust except the pump. I replaced my gutted cat with a CATGO cat, tube port blocked, and passed emmisions without a problem.

The key to passing an emmisions inspection is the converter.

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89 Formula 305 TBI
160* stat, 200* fan switch, K&N, Headers, 3in Flowmaster (hollow cat) back, pullies, 1.6 full roller rockers, B&M trans cooler, home-made ram-air
3.73 Richmond gears and SLP Zexel Torsen Posi (waiting for install)