Barely passed smog (test only) in CA

[mdoan]

HC(PPM) Max, Ave, Meas
15 mph-116,31,76
25 mph-91-20-41

CO(%)
15 mph-.74,.1,.74
25 mph-.62,.09,.59

NO(PPM)
15 mph-791,237,551
25 mph-730,199,215

As you can see ...it barely passed in CO(%).....
replaced oxygen sensor already...get goo gas mileage (28-30 mpg)
could it be the catylic converter???
Thanks

[90AccordSiR]

I failed my smog test then a week later i went and took it again but i was told this time to go run the car hard and make sure the cat is nice and hot then it sould lower your emiisions alot. I passed mine with flying colors the second time

[mdoan]

I drove from LA to westminster (35 miles)....is that enough?

I failed my smog test then a week later i went and took it again but i was told this time to go run the car hard and make sure the cat is nice and hot then it sould lower your emiisions alot. I passed mine with flying colors the second time

[arrozburner]

could be the catalytic convertor...but worry about it in 2 years

btw, im in l.a. too, close to downtown...where you located?

[williamsvt]

in vt, 94 cars and lower dont have to pass an emissions test...

[mdoan]

Are you sure it's the catalytic????I know I dont have to worry for another 2 years....but I like to have it replaced soon.....if I know it's the problem...
I'm in Rosemead....san gabriel valley

could be the catalytic convertor...but worry about it in 2 years

btw, im in l.a. too, close to downtown...where you located?

[timmy0tool]

if you have an aftermarket header, they usually tend to wear out the cat prematurely. this could be your problem. you should look at the cat in general. is your timing off? are all your vac lines in place or in good condition?

[mrhonda]

Have the EGR ports ever been cleaned? This is the most common cause of failed (or close to it) emissions test. If they have never been done, try that, your car will run alot better too.

[mdoan]

My car is all stocked...no mods....no i have never cleaned the egr ports..
the car is running very smooth...nothing is wrong...but I just want to get ready for the next smog check...
what should i do ....clean egr port..then what....replace the cat?

Have the EGR ports ever been cleaned? This is the most common cause of failed (or close to it) emissions test. If they have never been done, try that, your car will run alot better too.

[mrhonda]

Just clean the EGR ports and give it a good tune-up and you should be fine. Cat failures are not very common on these cars.

[mdoan]

thanks for the advice...i'll clean the egr ports ...also picked up
2 bottles of seafoam....I'm gonna give it a try

Just clean the EGR ports and give it a good tune-up and you should be fine. Cat failures are not very common on these cars.

[mrhonda]

I think there is a DIY for port cleaning around here somewhere if you've never done it before.

[wed3k]

yea, i might be due for a EGR one soon since it barely passed last year...

[accordztech]

Have the EGR ports ever been cleaned? This is the most common cause of failed (or close to it) emissions test. If they have never been done, try that, your car will run alot better too.

thats more on the levels of NoX...but its a good idea to do so.

but i think its the cat.

[mdoan]

So you think it's the cat???
what's the cheapest way to replace the cat and makes it legal for smog?

thats more on the levels of NoX...but its a good idea to do so.

but i think its the cat.