There is one little "While You Are In There" job that I have never seen mentioned.
With the AOS out, you have rare access to vacuum lines and the leak-prone Vacuum Reservoir. This is a great chance to use the Mighty Vac to test the Vacuum integrity of the SAI system. Specifically , pop off the Y on the Reservoir and test the Reservoir to see if it holds a vacuum for 5+ minutes. If it does not, you will eventually get a CEL and Readiness failure (Smog Test fail!). Much easier to deal with that now than when your Smog is expiring.
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