Failed Smog, advice needed
08-19-2010, 02:29 PM
#1
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Failed Smog, advice needed
Unfortunately my car failed the smog test today the mods are:
Cobb uppipe
Titek catted dp
Greddy Ti-c catback
Protune
I found a place that would pass it on the visual but it failed the HC PPM at idle, everything else passed though. The maximum allowed is 100 and it measured at 160. Is there anything i can do to make it go down temporarily? (change oil, air filter, high octane gas)? The car was driven 1 hour previously so the cat should of been warm. The oil does need to be changed but i didnt think that would affect the smog.
Cobb uppipe
Titek catted dp
Greddy Ti-c catback
Protune
I found a place that would pass it on the visual but it failed the HC PPM at idle, everything else passed though. The maximum allowed is 100 and it measured at 160. Is there anything i can do to make it go down temporarily? (change oil, air filter, high octane gas)? The car was driven 1 hour previously so the cat should of been warm. The oil does need to be changed but i didnt think that would affect the smog.
08-19-2010, 02:37 PM
#2
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I have Ver8 swap (ECU and all). I faild the idle test but passed the rev test. I had Ed at EQ tune my car at idle and ipassed. Limit 100 and my first run woulld spike to 760! then a little tweak here and there and it passed at like 10. good luck
08-19-2010, 03:16 PM
#4
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put on your stock downpipe, smog it, and poof all issues solved.
then if you choose put it back how it was
-Noah
then if you choose put it back how it was
-Noah
Last edited by LICmotorsports; 08-19-2010 at 03:36 PM.
08-19-2010, 03:26 PM
#5
most aftermarket hi performance catted dp's will degrade much much faster over time when it comes to keeping the emissions clean. They aren't regulated like stock cats so don't expect them to help u pass emissions after several years of use.
08-19-2010, 03:47 PM
#7
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You should have done it properly from the get-go and smogged it with the stock pipes on. IIRC, once you fail a smog test your car is classified as a "gross polluter" and you have to test annually.
08-19-2010, 03:52 PM
#8
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What I get from your post is "The current setup didn't pass smog, I want to change nothing and have it pass smog..." The square peg doesn't fit in the triangle hole my friend...
You should have done it properly from the get-go and smogged it with the stock pipes on. IIRC, once you fail a smog test your car is classified as a "gross polluter" and you have to test annually.
You should have done it properly from the get-go and smogged it with the stock pipes on. IIRC, once you fail a smog test your car is classified as a "gross polluter" and you have to test annually.
08-19-2010, 03:54 PM
#9
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Not exactly, Im asking if there are things I could do (i.e. change oil, filter, run high octane gas) that would lower my emissions for this test, yes I can swap my pipes but if instead all I had to do was buy a few gallons of 100 octane then I would rather do that. I know of plenty of people who have passed with aftermarket cats before so I know its possible.
08-19-2010, 03:59 PM
#10
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run a few gallons of e85 with 91 mixed in! but dont get in the boost at all!!!! and fill up with gas right away after you pass? maybe? or have it re tuned at idle?
08-19-2010, 06:46 PM
#14
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I just got smogged with a whole lot more than you with flying colors. Most likely your tune is just off, unless parts aren't working correctly (fouled plugs, bad O2, etc). If it's high HC, I believe that means you're running rich.
08-19-2010, 10:31 PM
#15
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yea those mods are nothing. you should pass easy.
listen to EVO-owns-sti when it comes to mod for mod dollar for dollar
you may be misfiring at idle as well to cause the rich condition. check the wires make sure they are not arching. see whats going on while idling, osmething is making you run rich.
listen to EVO-owns-sti when it comes to mod for mod dollar for dollar
you may be misfiring at idle as well to cause the rich condition. check the wires make sure they are not arching. see whats going on while idling, osmething is making you run rich.