I failed my emissions testing today!

Discussion in 'The Coffee Shop ~ Chit Chat' started by TRPLXL2, Apr 28, 2009.

  1. TRPLXL2

    TRPLXL2 New Member

    Today I went to get my truck (signature pic) emissions checked which is required every other year here in Ohio, so I am thinking no problem passing because the truck has only 9,500 miles and is in awesome condition. Well I pulled up and they did the gas pressure check and it passed, and then they pulled the truck forward and proceeded to put the OBD II scanner on it to check for codes or any problems. The next thing I know the guy is asking me if I have done any modification or engine upgrades such as a tuner or something like that, I told him absolutely not even though I had taken my Hyperpac off of it prior to leaving the house. He said that it had failed because the system had been completely erased by someone, so I stood there thinking about what I had done wrong to fail this test and then it occured to me. I told him I had a cut off switch for when I put the truck in storage for the winter to keep it from dying, then the guy tells me that every time I disconnected that battery it is erasing all of the codes and that it takes time for the computer to relearn all of the driving conditions such as o2 temps, egr valve, basically everything on the truck. I had only ran the truck about 20 miles before going up to the emissions place so It didn't have time to relearn I guess, he then gives me the option to run an RPM test which I had never heard of so I agreed to it. They put the truck in neutral and revved it up to what sounded like 5,000 RPM's and then they let off completely and just shut it off right away, which I wasn't too happy with them doing that to my truck!
    IT PASSED FINALLY! They threw out the results for the failed computer test, and they gave me a pass slip for the RPM test and I was able to get my license plates afterwards. I am going to have the same problem with my S-10 too, because I have a disconnect on it too to keep the battery from draining. So if you have a battery disconnect on your newer vehicle, run it for at least a week before you take it to the emissions station because it won't pass! Call me a dummy but I didn't know that the cut-off would mess with the computer like that, but I have to have the disconnect otherwise I will go through about 2 batteries a year from my lights.
    Here's a pic f the disconnect by the way, in case you were curious.

    Last edited: Apr 28, 2009
  2. TrailLeadr

    TrailLeadr New Member

    I recently ran into the same situation. We had a bad knock sensor on the Avalanche, and after I replaced it I had to erase the code because it wasn't going away on it's own. I initially failed because the comp wasn't ready to be tested. So after a 30mile run to get McDonalds for lunch with my son, the truck passed.

    Live and learn. But very good advice.:great:
  3. Jimmiee

    Jimmiee New Member

    They do the testing differently here in Nevada as well as in California. The way it works here is if there are any incomplete monitors the test is aborted. You are instructed that there are incomplete OBD checks and you need to drive the vehicle until the monitor clears or the code returns. This prevents you from clearing a code and immediately trying to get a smog.
  4. 1st Synthetics

    1st Synthetics New Member

    I am glad we do not have any of that testing here in Michigan.
  5. 95CTburb19

    95CTburb19 New Member

    My friends with their mustangs have had this problem in the past. They use their programmer to clear the codes for the 02 sensor after the cats (which they removed). then they usually have to go back to get re tested. Some of the guys at the emissions place knew what they did. I've been through the rev test several times, my jeep stalled out twice while on the rollers, but still managed to pass :lol:
  6. 1_low_rider

    1_low_rider New Member

    HA, here i mississippi when i have to get my inspection sticker renewed all they check is for tinted windows!!!THATS IT!!! no stupid tests or checking the condition of the truck. takes 30 seconds and im outta there!!
  7. Jimmiee

    Jimmiee New Member

    The new testing machines just won't let you cheat anymore. A couple of years ago you could take your rig to a smog shop and they could cheat the system although it was illegal. What they would do is hook the OBD link up to your vehicle and the sniffer into another unmodified vehicle. Your vehicle would pass with flying colors.....Now you can't do that anymore because the new machines use the on board sensors to perform the test. No more sniffer in the tail pipe. The "sniffing" is done with the O2 sensors on your truck along with your vehicles computer.
    Remember what starts in California starts working it's way EAST so get ready! :)
  8. ChevyFan

    ChevyFan Administrator Staff Member

    Texas has pretty bad air in the heat of the summer, so the testing has gotten more involved each few years. I did the same thing maybe 6 or 8 years ago with a bad O2 sensor, hoping to reset everything except the bad O2, I couldn't find the sweet spot, so I changed the O2 and run her a hundred miles and then passed after that.
  9. bry2500

    bry2500 New Member

    Tests here in Mass are the same . No codes No sticker. Very simple math. Unless you know someone ( which is illegal) anything outside the lines is an instant rejection.

    My wifes van just failed for tires. They said that they were too close to the wear indicators and they. @ $225 a tire it was a hard pill to swallow.
    Last edited: Apr 29, 2009
  10. TRPLXL2

    TRPLXL2 New Member

    I am waiting for the day that everyone has to pass California emissions, then I think a lot of people will be buying new exhaust systems and doing a lot of engine downgrading. I don't understand this either Diesel trucks do not get emissions tested here, so I guess I should have bought a diesel! I had never heard about using the unmodified vehicle to get the modified one to pass, that is pretty slick although like you said they have figured that one out now. A while back when I was at the Chevy dealer they offered me a 2007 Corvette Z06 hardtop for $38,000 new, and when I asked him what was wrong with it he said no one wanted it because of the California emissions package on it. They had gotten it from a dealer trade and they got stuck with it, does anybody know exactly what the California emissions package is on a vehicle?:neutral:
  11. TUTONE

    TUTONE New Member

    Gotta love the South! :glasses:
  12. jediracer

    jediracer New Member

    They stopped the "E Check" here is southwest ohio (Cincinnati Area) about 4 years, or so, ago.

    My last run in with E Check wasn't pleasent. I failed because they told me my check engine light was supposed to be on but it wasn't. They couldn't give me a code or reason why it was supposed to be on. I had a transmission put in a few months prior and my check engine light would come on all the time. I took it back to Aamco several times and apperently the last time I did they disconnected my check engine light. I reported them to Aamco headquaters, got things taken care of but it sure was a pain.

    I also had a friend go to E Check without a gas cap and they passed him. The tech stood on the hose and had his hand over the end that checked the cap for leaks.
  13. Dr_Zero

    Dr_Zero New Member

    When we had emissions testing we would run aviation gas in the car on the way over to testing and you could pass just about anything :happy:
  14. cascott325

    cascott325 New Member

    all i do is go downtown to the courthouse, hand them my old plates and they hand me new ones.
  15. 95CTburb19

    95CTburb19 New Member

    You guys have lift laws up here. I would be so mad if I got pulled over for being to high.

    California emissions package probably has all kinds of crazy evap and emissions stuff jammed under the hood and exhaust.
  16. 02TahoeLT

    02TahoeLT New Member

    When I first took my truck for the emissions test, it failed because the cigarette lighter fuse was blown. Don't even smoke and it cost me 60 bucks for a new one!
  17. RedLine Whiine

    RedLine Whiine New Member

  18. CarpenterGuy

    CarpenterGuy New Member

    i'm so glad alabama doesn't do emmissions tests. 3/4 of the state would have to do some major work, or buy new cars
  19. norcalbear05

    norcalbear05 New Member

    i failed for runnign rich and still cant figure out why

    now i have to pay for a diagnostic cuz i cant find anyone with a OBD I scanner :(
  20. Dr_Zero

    Dr_Zero New Member

    Doh! OBD 1 missed that here try this instead



    take a jumper wire and jump it with the key off from the test terminal to the ground terminal the two upper right plug holes then turn the key on DO NOT START IT!!!!! then the service engine soon light will flash code 12 it will be one flash a short pause then two flashes after another slightly longer pause the code will repeat itself two more times that says the diagnostic syatem is working if there is nothng wrong 12 will repeat itself over and over but if there is a problem it will flash the code 3 times then code 12 3 times and the next code if there is more than 1 code stored
    For other folks

    I think that Autozone and Advance Auto are still allowed to read the code for your in Cali but I have heard they cant clear any codes, seems the shops complained they werent getting the diagnostic fees they are used to ripping you off for.

    If you have to spend more than $30 consider getting yourself a code scanner they can be had for around $40 for a basic model

    This one has OBDII and CAN for the newer vehicles

    [ame="http://www.amazon.com/Autel-MaxiScan-MS300-OBD-II-Reader/dp/B001LHVOVK/ref=sr_1_1?ie=UTF8&s=automotive&qid=1241799284&sr=8-1"]Amazon.com: Autel MaxiScan MS300 CAN OBD-II Code Reader: Automotive[/ame]

    harbor freight has a clone also around $40


    This is the one I got since it not only shows the code it tells you what it means without having to look it up, its all there on the screen

    [ame="http://www.amazon.com/Autel-MaxiScan-MS409-OBD-II-Scanner/dp/B001LHW9YG/ref=sr_1_12?ie=UTF8&s=automotive&qid=1241799592&sr=1-12"]Amazon.com: Autel MaxiScan MS409 OBD-II/EOBD Scanner: Automotive[/ame]
    Last edited: May 8, 2009

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