1990 Acura Integra Repair Question
Asked on January 24, 2011
Dramatic smog reduction on 182K car
Here are the before after results: Both passed, the after with much better results.
Before 8-23-10 odometer 179,375 miles
CO2 O2 HC CO NO
15 mph 14 0.1 85 .37 739
25 mph 14.9 0.0 31 .11 126
X device installed at about 182,200 miles, drove only 400 miles.
After 1-19-11 odometer 182,619
15mph 12.9 2.7 17 .09 396
25mph 12.7 3.1 7 .01 146
Basically, shows across the board improvement only NO at 25 mph a little increase.
How significant is this? I think it merits more research. It could be the magic bullet.
Before 8-23-10 odometer 179,375 miles
CO2 O2 HC CO NO
15 mph 14 0.1 85 .37 739
25 mph 14.9 0.0 31 .11 126
X device installed at about 182,200 miles, drove only 400 miles.
After 1-19-11 odometer 182,619
15mph 12.9 2.7 17 .09 396
25mph 12.7 3.1 7 .01 146
Basically, shows across the board improvement only NO at 25 mph a little increase.
How significant is this? I think it merits more research. It could be the magic bullet.
Asked by Bob HowardAnswer
Replied on January 24, 2011
Interesting how the Co2 numbers came down and the O2 went up.
Replied on January 24, 2011
After calculating Lambda, the before numbers showed a Lambda of .9917 which is within the fuel control range of the O2 sensor and and air/fuel ratio of 14.58
After shows a Lambda of 1.137 and and air/fuel ratio of 16.71 which is a lean mixture. The STFT and LTFT numbers might be worth looking at before you try to load that magic bullet in your gun.