Date: Wed, 31 Jan 2007 13:35:06 +0000
Reply-To: dhaynes@OPTONLINE.NET
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <dhaynes@OPTONLINE.NET>
Subject: Re: smog failed 85gl
In-Reply-To: <5886963.1170248825221.JavaMail.root@elwamui-rubis.atl.sa.earthlink.net>
Content-Type: text/plain; charset=us-ascii
Your numbers are a bit jumbled, but it appears that you get both an idle and 2500 rpm test, no Dyno so you are not being tested for NOx.
You are really way out of range. Even without a catalyst, CO should be somewhere around .6% and HC should still be below 200 or so. The spec is 0-1.2% at the test port before the Cat. If the engine was running right, a good Cat would bring these numbers down to "0" at the 2500 rpm test. So first you need the get the basic adjustments right. The fact that your AFM was tampered with may be part of the problem. With these readings, the Cat is most likely toasted.
I am at work now so I do not have much time. Later I will right up a procedure to help you get things right.
Dennis
----- Original Message -----
From: Joseph Fortino
Date: Wednesday, January 31, 2007 8:13 am
Subject: Re: smog failed 85gl
To: vanagon@GERRY.VANAGON.COM
> my readings are below: yes we do have an idle test, no dyno in NV.
> I do think i am failing at idle speed.. I have a strebo
> muffler, not that it makes a diffrence
> in this test, but thought i'd post it along, cat is good also.
>
> Thanks Much,
>
> HC ppm
> 2500 300 limit 220 reading 255 CO% 1.20 reading 8.63
> Idle 774 425 220 1700
> reading 9.99
>
> co2 17.90 result 0.2 rpm 2663
> 16.10 5.6 901
>
>
>
>
>
>
> -----Original Message-----
> >From: Dennis Haynes
> >Sent: Jan 30, 2007 8:19 PM
> >To: vanagon@GERRY.VANAGON.COM
> >Subject: Re: smog failed 85gl
> >
> >I don't know if you have the idle test or the IM240, (dyno),
> but in general,
> >the states emission limits are at least above the upper end of
> the max
> >limits for vehicles of a certain year or range of years.
> Everything 81 and
> >later has controls for mixture,(CO, the O2 sensor, Cat), NOX, (
> O2 sensor
> >and catalyst) and HC, (Cat, fuel vapor recovery, closed
> crankcase vent). If
> >all is running well, all these number should be close to "0".
> If you failed,
> >you are probably creating 5-10 times the pollution/mile you
> should be. The
> >term is gross polluter and that is what emissions programs are
> all about.
> >Most likely there is a waiver program that if you can't make it
> pass after
> >certain repairs and some dollar amount, you get waived for some
> time period.
> >
> >
> >As for making it pass by tweaking the AFM, that was really
> tampering. If the
> >O2 sensor is doing its job, the mixture should be spot on by
> that. If not,
> >something is wrong and proper diagnoses are the key. Give us
> the numbers and
> >I will help you out.
> >
> >Dennis
> >
> >
> >-----Original Message-----
> >From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]
> On Behalf Of
> >Joseph Fortino
> >Sent: Tuesday, January 30, 2007 8:30 AM
> >To: vanagon@GERRY.VANAGON.COM
> >Subject: Re: smog failed 85gl
> >
> >Yup your right i was going to post my numbers and will soon,
> but last time
> >they tweeked my AFM to get it to pass and charged me 80 bucks,
> sure i
> >replaced
> >some parts common stuff that goes bad, just getting robbed
> every year
> >because i don't
> >drive the newest stuff and its an older car..
> >
> >bottom line is they will do whatever is needed to keep the
> older cars off
> >the road so you
> >have to buy the latest and greatest.. i feel.
> >
> >Joe
> >
> >
> >
> >-----Original Message-----
> >>From: Robert Fisher
> >>Sent: Jan 30, 2007 5:03 AM
> >>To: vanagon@GERRY.VANAGON.COM
> >>Subject: Re: smog failed 85gl
> >>
> >>If you'd post your actual numbers you might get some feedback
> to help you
> >>diagnose and eliminate the problem. Hey, it's happened before.
> >>
> >>Cya,
> >>Robert
> >>
> >>----- Original Message -----
> >>From: "Joseph Fortino"
> >>To:
> >>Sent: Tuesday, January 30, 2007 4:40 AM
> >>Subject: smog failed 85gl
> >>
> >>
> >>> Every year same ol same ol, failed smog.. hey my van runs
> great.. (
> >>> really )
> >>> I can not wait until this is waved. Looks like i will fork
> out some cash
> >>> to see what might
> >>> be effecting this reading.. o2 and yada yada..
> >>>
> >>> If it does not smoke or drip,, pass it.. hehe do they really
> want to get
> >>> the older carsoff the road
> >>> i think so.
> >>>
> >>> Nevada is every year here :( killin me.. LOL
> >>>
> >>> Joe
>
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