F-You Colorado! more emission headaches, I may loose my registration |
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F-You Colorado! more emission headaches, I may loose my registration |
newto914s |
Jun 29 2009, 02:07 PM
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#1
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Senior Member Group: Members Posts: 561 Joined: 16-February 04 From: Thornton, CO Member No.: 1,663 |
With the help of some of the great Colorado 914 guys(notably Mike and Chris W) i got my car to pass the e-check. Read about it here.
I thought everything was fine and dandy. With my 5 year collector plates on it I never have to worry about emissions again(bring on the SBC). But in Colorado they have these white child molester looking vans that sit on the highway entrance ramps. They use a laser to measure the emission of all the car entering. I drove by one and got a letter in the mail. Now I have to bring my car to a state inspector for another evaluation or my registration will be revoked and a $100 fine imposed. Their's no way I'm going to pass now, with no Cat an no smog pump. The irony is my car runs better than it ever has. F-U CO |
orthobiz |
Jul 4 2009, 01:57 PM
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#2
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Senior Member Group: Members Posts: 1,754 Joined: 8-January 07 From: Cadillac, Michigan Member No.: 7,438 Region Association: Upper MidWest |
Please explain: how does some roadside sniffer detect your emissions with a ?laser? And doesn't have to pull you over to go right to the tailpipe? How far away can they accurately do this?
Just seems beyond high tech. Too bad that govt guy Scott met wasn't at the BBQ. We coulda swayed him over to the collector's side of things! Paul |
Gint |
Jul 4 2009, 01:58 PM
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#3
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Mike Ginter Group: Admin Posts: 16,083 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Please explain: how does some roadside sniffer detect your emissions with a ?laser? And doesn't have to pull you over to go right to the tailpipe? How far away can they accurately do this? Something I dug up. I haven't even read it myself yet. http://www.motorists.org/emissions/home/ho...-sensing-works/ |
ArtechnikA |
Jul 4 2009, 07:01 PM
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#4
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
Something I dug up. I haven't even read it myself yet. http://www.motorists.org/emissions/home/ho...-sensing-works/ I read most of it. Salient points are - they claim they can test a car a second. With "better than 10% accuracy." (The way I read that, it means it's right 10% of the time. maybe they mean each reading is within 10% of its actual value - but that's not what they say.) Any way you look at it, 10% accuracy is pretty sucky - but they also claim "Inspect & Measure" programs have the same "10% accuracy" rating, so something is wrong with the reported data... Something I have an issue with is tailpipe height - I get the IR absorption spectrosopy. I don't see how they can sense a raised 4x4 with a tailpipe 3' off the ground one second and a lowered 914 the next. |
jhadler |
Jul 6 2009, 02:00 PM
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#5
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Long term tinkerer... Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529 |
With "better than 10% accuracy." (The way I read that, it means it's right 10% of the time. maybe they mean each reading is within 10% of its actual value - but that's not what they say.) No, that's exactly what they say. 10% accuracy means that an indicated reading of 3500 ppm could be anything between 3150 ppm and 3850 ppm. QUOTE Any way you look at it, 10% accuracy is pretty sucky - but they also claim "Inspect & Measure" programs have the same "10% accuracy" rating, so something is wrong with the reported data... 10% is really not that bad. If you look at what they are measuring, and how they are doing it, 10% is really quite an impressive accuracy. As for the mobile system having the same claimed accuracy as the permanent testing stations? I don't know, it's possible that the they both have the same accuracy, but are based on different principles. I would hazard a guess and say that the mobile system is more maintenance intensive, and that there is more work required to keep it operating at that 10% level. The QUOTE Something I have an issue with is tailpipe height - I get the IR absorption spectrosopy. I don't see how they can sense a raised 4x4 with a tailpipe 3' off the ground one second and a lowered 914 the next. They're not looking at the pipe itself, but the cloud behind the vehicle. Granted, a lifted 4x4 is likely to measure less than the 914 as the system no doubt is designed to look at passenger cars, and not big rigs. Note: While I'm impressed with the design of the system, I'm not necessarily supporting the way it seems to be used. -Josh2 |
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