Quote:
Originally Posted by oil pan 4
So it almost looks like checking obd2 tunes on cars is a waste of time.
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Has there ever been a study to determine the effectiveness of DEQ checks in the first place? What would be the pollution levels in a city without required DEQ testing vs with? Is the cost in both time and money worth whatever improvement in air quality is observed, or would there be better ways to improve air quality?
I wouldn't entirely be surprised if these questions were never asked.