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General E46 Forum
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Old 10-06-2012, 02:20 PM   #1
emo8282
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Emissiob failed..

Ma car is 99 328i.
I took emission test this morning and got perfectly fail. HC-155,CO-5.18 Its so higher than limited result. Should I change the Catalytic converter or another way to fix it?

NO was like 187 that low, its weird a?
Any suggestions for it guys?
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Old 10-06-2012, 02:29 PM   #2
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whoaaa brother. youre all over the place.
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Old 10-06-2012, 02:33 PM   #3
emo8282
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What can i do for it? Get a new engine? Lol

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Old 10-06-2012, 02:48 PM   #4
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Wow
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Old 10-06-2012, 02:53 PM   #5
FenderGuy05
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I don't know what I just read
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Old 10-06-2012, 03:07 PM   #6
dmax
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Quote:
Originally Posted by emo8282 View Post
Ma car is 99 328i.
I took emission test this morning and got perfectly fail. HC-155,CO-5.18 Its so higher than limited result. Should I change the Catalytic converter or another way to fix it?

NO was like 187 that low, its weird a?
Any suggestions for it guys?
There are many things you can try before replacing a cat...which might be warranted still based on mileage or years anyway...(I think it's 10 years, but it might not be where you are...IDK).

In any case, start with getting codes read...read jfoj's sig link for misfires...O2 sensors could be bad, plugs could be bad, many things could be bad...

You've really impressed the guys here I can see. Do not worry, OP, I understood a good 90% of what you said and sort of guessed at the rest!

Most of the guys here are idiots, but a few, like Gheybe and Nova, are so fn smart, they get so much that they just can't understand sometimes. Me? I don't have a problem ever reading or understanding posts like yours. Why you wonder? Well first, because I care, on occasion. Secondly, I ran it through google translate: latvian first...then japanese, and finally into Australian English. No worries, mate. Cheers!
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Old 10-06-2012, 03:36 PM   #7
emo8282
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Thanks,
I changed whole plugs a month ago, checking faulty code with obd2 and i got misfired on cylinder2 but this code disappear later(like15min). Also i got feul trim code too. U think those things effect to the emission right? Its old and over 230k now anyway.

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Old 10-06-2012, 03:43 PM   #8
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Trim codes, especially if they've been long term issues, can damage 02 sensors and cats, so I hope you haven't been ignoring stuff for a real long time.

Check for air leaks first. Hoses are inexpensive to fix, just a little time consuming to find.

Yes, I think that trim codes might be why you failed emissions. Read jfoj's sig link. Search for jfoj and read the link he has on 'solving misfires'
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