What year did they quit putting emissions equipment on the Tracker

What is your question?

I am on my second Chevrolet Tracker. The gas mileage is just not good (first one was excellent) and I'm told it's because the emissions equipment can't be removed because it has a detector that will go off if you try to take it off.

What makes this problem better or worse?

Problem is always

How long has your 2000 Chevrolet Tracker had this problem?

A few months