makku
01-09-2004, 04:50 PM
I'm curious if anyone can tell if anything is wrong with my car from reading the smog test numbers i got. What I'm concerned with is that all my numbers are way above average, but still under the max. I passed, but I thought civics were supposed to be relatively low emission vehicles. Here are the numbers:
Test 15mph 25mph averages MAX
CO2 15.2 14.97
O2 0.13 0.07
HC 60 42 21 / 13 92 / 57
CO 0.20 0.05 0.06 / 0.05 0.55 / 0.54
NO 471 290 150 / 136 716 / 764
Hopefully, this is readable. As you can see, my numbers are not very close to the averages (except CO maybe). It looks like I have a lot of unburnt fuel and high NO. I know that NO is produced at higher temperatures. Or maybe my cat is going bad. Could it be my O2 sensor needs to be changed? I have no idea. If anyone can make sense of this, I'd appreciate it. BTW, my fuel milage isn't too good (25mpg), but I always thought it was because I drive kind of hard. (only way to get my little 1.5 to go)
Thanks!
Test 15mph 25mph averages MAX
CO2 15.2 14.97
O2 0.13 0.07
HC 60 42 21 / 13 92 / 57
CO 0.20 0.05 0.06 / 0.05 0.55 / 0.54
NO 471 290 150 / 136 716 / 764
Hopefully, this is readable. As you can see, my numbers are not very close to the averages (except CO maybe). It looks like I have a lot of unburnt fuel and high NO. I know that NO is produced at higher temperatures. Or maybe my cat is going bad. Could it be my O2 sensor needs to be changed? I have no idea. If anyone can make sense of this, I'd appreciate it. BTW, my fuel milage isn't too good (25mpg), but I always thought it was because I drive kind of hard. (only way to get my little 1.5 to go)
Thanks!