1995 C220 been through emissions 7 times but big difference this time
AZ applicable standards: Hydrocarbons (HC) 0.80 Carbon Monoxide (CO) 12.00 Oxides of Nitrogen (NOX) 2.00
My problem is with the NOX: 2.63 is highest 2.01 2 times and we get to today crazy results:

HC 0.65 CO 6.45 NOX 2.02 failed nox again by .02
They were almost closed and I asked can you please just retest it again now
the guy said drive it around get another ticket and we'll retest.
Drove out of bay back to entrance and into bay again about 5min total time if that.
This time a different guy did the test he seemed to be the knowledgeable one.
He did the test different as on the slow test he got up to speed faster than anyone else
and on the high speed test he creaped up to speed taking longer heres the results:
HC: 0.96 fail CO: 17.96 Fail NOX: 1.60 Pass HC was never over 0.69 CO was never over 7.00
How could these reading be accurate at all. I dont know a lot about emissions but this
just dont seem right by any means. Any clarification would be welcomed and appreciated