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[alfa] Re: Emissions failure
Rob
What were the other readings?
Anywhere north of 600ppm NOx is REALLY high after the catalyst. Kind of inplies
that the system is only about 50% efficent, when it should be closer to 80%.
While you are doing the cleaning, find a digital volt meter and try to monitor
the O2 sensor to see what it is doing.
BTW, for those of you who are astonished by the fact that running lean is bad-
NOx emissions are a leading cause of ground level ozone. And cars tend to be a
contributor of NOx... I know California does check all 3 of the major
regulated pollutants- CO, HC's, and NOx.
Eric Storhok
Ann Arbor, MI
>
> Date: Tue, 10 Feb 2004 13:35:35 -0800
> From: "Granier, Rob" <[email protected]>
> Subject: [alfa] 164S Smog Test Failure - Suggestions How To Pass?
>
> Folks - here in The Peoples Republic of California, our smog police indicated
> my 164S has failed due to being over the max for NO (PPM). Max is 717, I'm at
> 809. This would indicate the car is running too lean? It was suggested I:
>
>
> Get the fuel injectors cleaned out
> Check/replace fuel filter
> Clean out the carbon deposits
>
> The car was at ~ 185-200 degrees when tested, had been driven 130 miles over
> the last 24 hrs, so it's had the "Italian Tune-Up".
> Anyone have any other ideas?
> I will get some additive to put in my gas to clean the injectors, and/or
> something to attack the carbon build-up. If the fuel-filter was that
> clogged, it would be obvious. But perhaps I should replace anyhow? I've
> driven the car about 1500 miles over the last two years.
>
> Thx,
> Rob Granieri
> NO. CA, USA
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