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Inspection (emissions) failed. What to do?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Vlad, Nov 13, 2007.

  1. Vlad

    Vlad Junior Member

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    I own a 2002 Prius. About 63K miles. I took it to my local Toyota dealership for an inspection and the car failed inspection! Something to do with emissions. No check engine light was on and the car has been driving fine. No funny smells or bad exhaust.

    The service manager says that their machine can't specifically pinpoint what the problem is. Could be one of a couple dozen things he says. He needs to use a specific Toyota diagnostics machine, and that will cost me $130 just for the diagnosis. Of course I'm not sure about the repair costs.

    I am surprised that their basic inspection can't tell me what exactly is wrong with the emissions, and I have to pay $130 more to get the answer. Does this sound strange? Should I take it to another local repair place that does inspections, or continue on with the dealership? I've never had any issues with the dealership in the past. I do use another local repair place (VIP), primarily for oil changes and tires, but they don't do inspections.

    Thanks, Vlad
     
  2. FBear

    FBear Senior Member

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    When they did the inspection the dealership had to hook the car up using the OBD II system. This test should have given them the exact reason for the failure to meet emission requirement. It should have also given them a printout showing what part of the emissions test you failed. Ask for your copy.

    Then take it some place either other dealership or if it will require a simple adjustment take to your local trusted mechanic.
     
  3. Ian MacDonald

    Ian MacDonald Junior Member

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    <div class='quotetop'>QUOTE(FBear @ Nov 13 2007, 02:40 PM) [snapback]538982[/snapback]</div>
    Just curious, but shouldn't the emission control components still be under warranty if the car is only 5 years old?

    Regards,

    -- Ian
     
  4. miscrms

    miscrms Plug Envious Member

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    Sounds kind of fishy on a number of levels.....

    1. If the car is not meeting emissions, its supposed to throw a CEL (check engine light). That is the lights main reason for being, it says "I'm not meeting emissions" or more often "I have a bad sensor so I can't tell if I'm meeting emissions".

    2. If the car isn't throwing a CEL, it shouldn't know there is an emissions problem, and therefore shouldn't report a problem when they hook it up for the inspection. Generally most states don't actually test emissions any more, you just hook up the computer which asks the car if its meeting emissions. All cars were required to have this standard OBDII interface starting in 1996.

    3. If the car is throwing a CEL, but lets say the the bulb is out or something so you can't see it, there would be a code associated with the light that tells them in general terms why it thinks there is a problem. You might need a more detailed scan of the Toyota specific codes to correct the problem, but it should at least tell you in what way it is failing.

    4. I would think a Toyota dealer would be scanning a Toyota on a Toyota scanner to begin with? Maybe the state has a standardized inspection system they are using instead? Still seems to me like $130 is pretty steep just to plug it in and get a code.

    5. I believe the warranty period for emissions related equipment is 8yr/80,000mi per federal EPA rules. Seems like the dealer would need to show that the emissions failure is not related to part of the warrantied emissions system before talking about charging you any money.

    Am I off base on any of these? I would probably take it to another dealer if it were me. If thats not an option I would specifically ask them why this is not covered under you EPA emissions system warranty.

    Rob
     
  5. Sufferin' Prius Envy

    Sufferin' Prius Envy Platinum Member

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    <div class='quotetop'>QUOTE(Ian MacDonald @ Nov 13 2007, 01:14 PM) [snapback]539059[/snapback]</div>
    At this point, since he doesn't have his location listed in his profile, we can only wait or guess.

    This is a good example of why everyone should put their location in their profile. ;)
    As far as we know, the OP lives in Ethiopia, has no warranty, emissions aren't a governmental concern, and has half a dealership to work with ("a specific Toyota diagnostics machine" being a hint of what he is doing).
     
  6. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(Sufferin' Prius Envy @ Nov 13 2007, 01:43 PM) [snapback]539071[/snapback]</div>
    LMAO!

    It would be helpful to know if it was the sniffer test or the diagnostic test that failed.
     
  7. hobbit

    hobbit Senior Member

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    Few cars do gas-analyzer emissions inspections anymore, at least in
    the US. If the check-engine light is on, first thing to do is get
    the diagnostic code(s) from the car and go from there. For an '02,
    check that HCAC adsorber valve underneath and make sure it can turn.
    [There's a pic in the training slides.]
    .
    _H*
     
  8. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 04:49 PM) [snapback]539176[/snapback]</div>
    So how are they actually measuring the emission output? There are no devices on the car in the exhaust stream that are accurate enough to test for this sort of thing.
     
  9. hobbit

    hobbit Senior Member

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    OBD-II based emissions testing basically consists of asking the
    car, "are you all ok?" and having the car say "yup, I'm okay." More
    specifically, querying the state of various emissions-monitor tests
    to see if they're a> complete, and b> passed. The car continually
    does its own checking, based on expected vs. actual fuel trims, how
    well the catalyst is working, periodic fuel-system leak-down tests
    to make sure HC isn't escaping, etc. This is called "Mode 6" in the
    scantool lingo, and there's a base set of OBD-II mandated stuff that
    the inspection machines can just query the car for. They're figuring
    the protocol is involved enough that people won't just build a little
    board to fake up all the correct responses, and it would be illegal
    to do so anyways. Another obvious check is if the MIL is on or not,
    and if it comes on briefly at startup until the engine starts [or in
    the case of the Prius, goes to READY mode].
    .
    Some inspection stuff needs to see valid engine RPM before it will
    complete the tests. See this which was triggered by the combination
    of the inspection facilities in Georgia having no clue, and me having
    to teach the kid in the local garage how to get a Prius to idle.
    .
    _H*
     
  10. Vlad

    Vlad Junior Member

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    Thanks to everyone for their response.

    I live in Red Sox nation (and will update my profile).

    The CEL has not been lit up.

    The service manager said the car, past the 60K mile mark, is not under warranty.

    I do think the dealership is using the basic inspections machine for state of MA. Their $50,000 fancy Toyota diagnostics machine is not what they use by default for inspections.

    I'll give Toyota their $20 for the inspection, obtain the printed results, and will take the car to the gas station down the road for another inspection. Hopefully there is no problem after all, and if there is they'll do a better job (or perhaps cheaper) job of diagnosing. I can update this forum when I find out what's going on.

    Thanks, Vlad
     
  11. F8L

    F8L Protecting Habitat & AG Lands

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    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 06:13 PM) [snapback]539205[/snapback]</div>
    So essentially it is looking at mostly theoretical calculations and not actual emissions output? The O2s will only measure so much so quickly without going to a wideband O2 unless there are other sensors after the cats that I don't know about.
     
  12. mingoglia

    mingoglia Member

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    It still sounds fishy. That's strange for a dealer IMHO. If their Toyota scanner says things are cool, they should be cool. I don't see why they would even have to try another "official scanner". As others have said, the sensors in the vehicle tell the computer if everything is within spec. For example, there's at least 2 O2 sensors. There's one in front of the catyltic converter and one behind it. It will compare the two measurements, with the aft sensor obviously displaying a lower emissions value (if it's working) and if it's within spec, it passes. There's many other sensors that work the same. They'll have a certain voltage that they'll be at if the component is operating within spec, and all is good.

    I assume your check engine light works? The spec calls for the check engine light to self test when the vehicle is turned on. If the bulb is out they'll automatically fail you.

    Mike
     
  13. Godiva

    Godiva AmeriKan Citizen

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    <div class='quotetop'>QUOTE(Vlad @ Nov 13 2007, 10:16 PM) [snapback]539227[/snapback]</div>
    dingdingdingding....we have a winner.

    They say it's out of warranty. (By 3,000 miles? Come on.)

    The $130.00 is just the start for this dealership. They've got dollar signs in their eyes.

    Your car runs. There are no warning lights. The first thing I'd do is take it to another dealership. At least one other. Two if necessary. I'll bet one of the next two dealerships will either be able to test your car without that $130.00 or will agree that you're close enough to being in warranty to do whatever needs to be done.

    And when you find that dealership stay with them and don't go back to the first one ever again. (You can always call them on the phone and tell them you're never coming back and why.)
     
  14. Jim1eye

    Jim1eye Shaklee Ind Distributor

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    <div class='quotetop'>QUOTE(Vlad @ Nov 13 2007, 11:16 PM) [snapback]539227[/snapback]</div>
    AHA! The cause of the problem rears it's ugly head! :p
     
  15. galaxee

    galaxee mostly benevolent

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    well... if it's anything like here the state provides its own testing machine and they are required to use that and not the toyota scantool. so you can't fault the dealer for that, that's state policy. and of course, it's not meant to tell you WHAT is wrong, just that it passes or fails and if so, in what area.

    of course once your car fails you've gotta fix it to maintain registration. and that's where the diagnostic fees come in to find out what's wrong and where to start fixing it. though $130 is a bit pricey to plug something in and read a code.

    federal emissions warranty is 8 yrs/100k BUT depending on the issue it may or may not be covered under that warranty.
     
  16. AISpence

    AISpence New Member

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    The owner's manual has a procedure in it that allows you to check to see if all your warning lights are operating properly....around pages 125 or 130 I think.
     
  17. Sufferin' Prius Envy

    Sufferin' Prius Envy Platinum Member

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    <div class='quotetop'>QUOTE(Vlad @ Nov 13 2007, 07:16 PM) [snapback]539227[/snapback]</div>
    <div class='quotetop'>QUOTE(galaxee @ Nov 13 2007, 09:48 PM) [snapback]539282[/snapback]</div>
    Well there . . . that makes all the difference in the world.

    BUT . . . Massachusetts is one of the states which has adopted California's emission standards.
    So, like the Prii in California, your emissions should be covered for 10 years/150,000 miles.

    Much better than in Ethiopia. :lol:
     
  18. 9G-man

    9G-man Senior Member

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    Just read your warranty manual, emissions warranty, that came with the car. They still have to diagnose the component, but if the failure is emission related and covered, it'll all be covered,even diagnosis.
     
  19. richard schumacher

    richard schumacher shortbus driver

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    What she wrote. Start by going to another dealer; this one is trying to hose you.
     
  20. jk450

    jk450 New Member

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    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 10:13 PM) [snapback]539205[/snapback]</div>
    Sort of. The on-board diagnostic system asks itself "am I ok?" periodically. The state I/M program just goes in an grabs the most recent results.
    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 10:13 PM) [snapback]539205[/snapback]</div>
    Correct.
    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 10:13 PM) [snapback]539205[/snapback]</div>
    No. Mode $06 is not regulated or generic, and is useless for an automated I/M test. All that Mode $06 does is provide a record of raw data related to the results of the various component checks performed by the monitors. That data can be useful to the technician in some cases, if he or she knows how to convert and/or interpret it. It was not developed for the technician, but for the engineer, so there's a bit of a learning curve. Now that it's being used by techs, new implementations are a tad more user-friendly.

    Most of the checking is performed in Mode $01. Some state I/M systems will query Mode $09 to get the VIN.

    <div class='quotetop'>QUOTE(hobbit @ Nov 13 2007, 08:49 PM) [snapback]539176[/snapback]</div>
    Many US states still require gas-analyzer emissions inspections, either through approved independent inspection stations or through centralized testing. California, Texas, New York...