tommartella1
New member
- Sep 6, 2008
- 9
- 0
- 1
...passed smog but numbers went up.? my numbers for no(ppm) from 2 years ago to the smog test I did the other day went up from 630 at 15 mph to 987 also the numbers at 25 mph went from 757 2 years ago to 814 today. what can I do to reduce these numbers next time I take smog test?