DTC p0496 Auxiliary Emissions controls ISO/ASE.
what to look for besides cracks? on 2004 Chevrolet Malibu

I just replaced a stolen catalytic converter on my Malibu and all of the vehicle self tests show complete but a DTC of p0496 Auxiliary emission controls ISO/ASE DESCRIPTION: evaporative emission system high purge flow.
All the evap lines are in tact and electrical connections seem to be ok. I don't have ,or know anyone that does have a smoke machine to use. any suggestions?

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