failed smog!help please

[scotty91]

engine f22
failed HC and CO at idle
here is the reading

idle--900
HC(PPM)
max-120
ave-29
meas-254 failed

CO(%)
max-1.00
ave-.10
meas-1.04 failed

RPM--2468
HC(PPM)
max-140
ave-20
meas-66 passed

CO(%)
max-1.00
ave-.10
meas-.77 passed

any ideas? cat or o2 sensor?

[ExplodingCake]

Possible cat is not doing it's job at low speeds.

Was the cat hot enough during the test?

[4GAccordH22]

A cat or O2 sensor might help, but it means that you are running too rich at idle. Could also be the idle air control valve or even a dirty air filter...
I would do a complete tune up with filters and oil change.

[wed3k]

try warming the cat up...is it original?

[scotty91]

A cat or O2 sensor might help, but it means that you are running too rich at idle. Could also be the idle air control valve or even a dirty air filter...
I would do a complete tune up with filters and oil change.

i will do that tomorrow

try warming the cat up...is it original?

no. I have a one stock cat off my other cb should i use that one?and i will try warming it up the next time i test. how long should i let it warm it up for?

[scotty91]

Possible cat is not doing it's job at low speeds.

Was the cat hot enough during the test?

i couldn't tell ya.

[wed3k]

i will do that tomorrow



no. I have a one stock cat off my other cb should i use that one?and i will try warming it up the next time i test. how long should i let it warm it up for?

2500rpm right before the test

[scotty91]

2500rpm right before the test

for like five ten mins?

[wed3k]

yea

[scotty91]

ok, thanks for all your help hopefully pass smog tomorrow

[Apache]

I always have to retard my timing to make my car pass emissions in GA!!!

[scotty91]

after i seafoamed it and replaced the o2 sensor i got the HC down to 198 at idle. think im gonna go replace the cat.

[scotty91]

any one wanna let me borrow your cat for smog? lol

[SilverShadow]

if it fails..try this
http://www.cb7tuner.com/vbb/showthre...105490&page=10

[scotty91]

i was reading that a couple days ago, where do i go or what do i do, like what is the place called or is there a website?