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#1
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SMOG Problem
03 wrx with 3' turbo back exhaust. Hydrocarbons are too high at 109 PPM. All else passed the smog check. cars seems to take too long to drop the hydrocarbons at idle. But at higher RPM's the Hydrocarbons are lower. the engine is warm and the cats are at a good working temp. Also between idle and 4000RPM sounds like spurttering ANY IDEAS WHATS WRONG?
Last edited by jzeller; March 10th, 2010 at 07:51 PM .
Reason: spelling
#2
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Re: SMOG Problem
I can help you out if you want...PM me if your interested
Coldflame6's Sig: 9:39 PM ¦ 05Subie » she looked like a dude
#3
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Re: SMOG Problem
update pulled out my denso iridium plugs and they look burnt blackish orange.
#4
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Re: SMOG Problem
does the car have any sort of cat? might wanna toss on the factory cat if not.
JoeyMR's Sig: JOEY | '08 X 326whp/344wtq | '10 STi
#5
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Re: SMOG Problem
HC's are high, plugs are burnt. Do a tune up on it, its misfiring at idle
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#6
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Re: SMOG Problem
At Autozone where i bought the original spark plugs, showed the plugs. found out they were not gaped, unlike the person said there almost a year ago. Now i have free new plugs and i gaped them myself. There is no idle problem and its runs cooler temps and no misfiring.
#7
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Re: SMOG Problem
Hydrocarbons still too high at idle. now the tech will be running a diagnostic test. so far the diagnostic said the that the cat is not working properly. Replace the high flow cat? Any ideas?
#8
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Re: SMOG Problem
I would need to know what your front and rear o2's are doing, if the rear o2 sensor isn't toggling its fine, but if its toggling your cat is toast
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#9
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Re: SMOG Problem
sounds like the misfiring has ruined the cat. since it has only 1 cat on the exhaust,and its far away so its takes a while to warm up. pretty much its not filtering the exhaust like it should.
#10
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Re: SMOG Problem
Dang, hope you resolve the problem! Keep us updated on the progress.
EvolvedX's Sig: Jason
#11
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Re: SMOG Problem
you have a hi-flow cat? i know some of the evo guys pass with hi-flow cats and some don't. best bet is to toss on the stock cat if you have it.
JoeyMR's Sig: JOEY | '08 X 326whp/344wtq | '10 STi
#12
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Re: SMOG Problem
Stock EVERYTHING is the BEST way to go.
#13
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Location: Vegas bitches! ;)
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Re: SMOG Problem
Quote:
Originally Posted by
PookdizzleHtk
Stock EVERYTHING is the BEST way to go.
I agree... but it's a pain to go back to stock just for a smog...
EvolvedX's Sig: Jason
#14
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Join Date: Jul 28th, 06
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Re: SMOG Problem
Quote:
Originally Posted by
PookdizzleHtk
Stock EVERYTHING is the BEST way to go.
all you really need is a stock cat ;[
#15
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Re: SMOG Problem
I have similar setup, 110 idle HC. Have you tried putting in a bit of E85?
#16
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Re: SMOG Problem
The tech found out the cat was not getting hot enough to work properly.So step one is 3500RPM for 10min= from 120HC is now 77HC. So i passed the SMOG.
#17
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Re: SMOG Problem
nice...
KINGSKY's Sig: RANDi
#18
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Location: San Diego, CA
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Re: SMOG Problem
congrats on the pass. i was just getting ready to offer to let you borrow my stock dp but hey! you passed, haha
phoenixnoitingi's Sig: Almost ready for some of that externally wastegated goodness.
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