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Anyone ever fail emissions? My car failed for too high hydrocarbons.

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Old 02-06-2006, 07:41 AM
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Default Anyone ever fail emissions? My car failed for too high hydrocarbons.
341 ppm at idle where the limit is 220 ppm, and 338 ppm at 2500 rpm where the limit is 220 ppm.

The guy that tested it said that this is usually related to unburned fuel or the car running a bit too ruch. He said that I probably don't need new cats, which is good.

I'm thinking it probably just needs new plugs maybe; what else could it be? I did run the car with ISV and IAT swapped for about 500 miles, so that could have easily fouled the plugs, no? What do you guys think?

Thanks,
Mike
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Old 02-06-2006, 08:05 AM
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Default Re: Anyone ever fail emissions? My car failed for too high hydrocarbons.
Been through this in MA too. HC and CO too high is a rich condition. HC too high and CO low is unburned fuel. Plugs, misfire are most likely.
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Old 02-06-2006, 08:13 AM
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wierd mike, car just passed in CT less than a year ago
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Old 02-06-2006, 08:20 AM
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Default mike - pats car failed for the HC's too, you could call him up and ask what he's doing
or ask andre, he might know - but at the same time i feel like you might have already asked him.
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Old 02-06-2006, 08:55 AM
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Default Plugs and air filter
Or you can ask the priest to pray a bit for you... Eheheh
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Old 02-06-2006, 09:00 AM
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And a fresh oil change.
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Old 02-06-2006, 09:25 AM
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Yup
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Old 02-06-2006, 10:31 AM
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Default Meh... it's my motor now. Can't be the cats.
We should put the other MAF back in, and I'll get new spark plugs.

-Mike
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Old 02-06-2006, 10:32 AM
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My motor got fresh oil when we did the swap about 1000 miles ago.
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Old 02-06-2006, 11:39 AM
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Yabut 500 mi of those were with the IAT and ISV connectors swapped. Check/clean your plugs.
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