Before people start getting all pissed off I did the search and still came up with nothing cause my problem is CO not NOX I have a 92 integra bone stock...It failed today and I was wondering what I can do to fix this problem without spending alot of money on this daily beater guessing and checking, I just want to know the best solution...Thanks in advance let me know if the biggest chance of it is the cat, o2 sensor or the map thanks in advance

HC
max ave meas
121 31 102 @15mph near fail
96 20 110 @25mph near fail

CO
max ave meas
0.76 0.10 1.76 @15mph fail
0.65 0.09 2.11 @25 mph fail

NO
max ave meas
807 237 793 @15
746 199 814 @25 fail

 

looks like a bad cat to me......

 

thanks bro anyone else have suggestions?

 

replace the cat, then drive the car for 30 mins on the freeway to warm it up, then go to the smog station. Also it helps to clean the EGR valve. Don't ever go smog a car when it's cold. this always works for me.

 

i thought only auto DAs have egrs????

 

A tune up will help out your emissions a lot. Decarbonizing the cylinders will help lower the NOx as well. And definitely get a new cat.