View Full Version : Need help with emission
koolcat
05-13-2008, 09:25 PM
I am located in Georgia and im failing emission. My car is a stock dual cam ka with only full exhaust and intake and here is the pictures of my emission result:
http://i32.tinypic.com/11w6639.jpg
http://i30.tinypic.com/2lv0crd.jpg
So from looking at the result can someone please tell me what i can do. People have been telling me different things, change the cat and cleaning egr system, a shop even tell me my egr is dead but then another guy which pretty good with car told me tat my egr is ok, it just a little weak and he advice me to change my cat first. What you guys think, im thinking just buying a magnaflow cat and swap it and try the emission again, but then again i don't want to waste money if it doesn't even pass me. Please help, don't have that much time left b4 my tag run out
Future240
05-13-2008, 09:47 PM
Sorry I can't help, but I'm curious to know where in GA did you actually have to do emissions check?
koolcat
05-13-2008, 11:28 PM
in Gwinnett county
yoni_nismo
05-13-2008, 11:53 PM
Im not positive but I think high nox usaully means a malfunctioning egr valve... check your vacum lines and egr diaphram if it moves up and down while u lightly pull the throtle...goodluck
can anyone confirm tho, im not 100% sure.
projectRDM
05-14-2008, 12:27 AM
PM me, I've got your answer.
projectRDM
05-14-2008, 07:23 AM
And for the record, I've passed GA emissions without an EGR valve at all. It's actually cleaner without it, but the cat does need to be functioning.
koolcat
05-14-2008, 02:47 PM
Just an update, went ahead and just put a new magnaflow cat in and ran the test again. It actually pull my nox ppm down from 969 to 308 on the 25/25 test and from 1731 to 67 on the 50/15 test. So anyways thanks all for the advices
projectRDM
05-14-2008, 02:51 PM
It's a bolt in, after the downpipe? If so you're now running two cats, no wonder it's so clean.
koolcat
05-14-2008, 07:24 PM
No actually it's only a new one replacing the position of the bad cat.
koolcat
05-14-2008, 07:25 PM
Also can someone help me, i think my car is running rich? Or maybe not i can't really tell but the muffler guy told me so. Is there a way to test to see if your car is running rich or not? Is it better to run rich?
S14DB
05-14-2008, 07:55 PM
No actually it's only a new one replacing the position of the bad cat.
S13 or S14? AIV?
Also can someone help me, i think my car is running rich? Or maybe not i can't really tell but the muffler guy told me so. Is there a way to test to see if your car is running rich or not? Is it better to run rich?
Find a Dyno with Wideband.
koolcat
05-14-2008, 08:04 PM
S13 or S14? AIV?
Find a Dyno with Wideband.
Mine is an s13, and i don't know wat you are trying to ask about the air induction valve?
Also, you can only tell if you're running rich from a dyno? I don't really want to spent like 75$ on a dyno
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