Is there anything I can do so speed up the reset of my computer monitors? on 2006 Hummer H2

I am trying to get my H2 through smog. I recently had some work done on it, but the computer for the catalytic converter has not reset, even after driving it about 150 miles. Anything I can do to make this happen faster? Thank you

Asked by for the 2006 Hummer H2
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