Have you tried deleting the code with a scanner? If not, that should do it. If it doesn't, disconnect the battery for at least 30 minutes. That should reset it.
Take a look through this link:
https://www.2carpros.com/articles/check-engine-light-clear-codes
Now, the AutoZone person is telling you to drive it because the computer should recognize the part was replaced. However, there may be a different underlying problem causing the code that has not been addressed. In that case, the light won't go off. If you reset it as I described, it should go off but may come back on if the problem isn't fixed.
If that doesn't help, let me know. Also, if you have other questions, feel free to ask.
Take care,
Joe
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Thursday, March 19th, 2020 AT 8:12 PM