best thing to do is when you get it tested ask what is high on emmissions, co or hc. But before you get it tested, change oil and oil filter, air filter and then drive on teh eway for about 10 miles or so or soemplace you can go at least 50 for that long. then after it is fully warmed up take it to test... if it fails ask him what the problem is... it may be due to a lekay exaust or soemthing similar.....
Jul 12, 2010 at 11:57 AM