Illinois has had OBD2 for years.
They destroyed engines and transmissions with load testing.
They destroyed engines and transmissions with load testing.
Emissions Inspection via OBDII Connector
- Thread starter paulo57509
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Originally Posted By: bdcardinal
Originally Posted By: paulo57509
My father (lives in an Enhanced Test County = dyno test) took his vehicle to the test station in the neighborhood.
They just put the sniffer in the tailpipe, ran the tests (static - which it passed) and gave him the certificate.
My father holds a current emissions test license and thought this was highly irregular that the shop didn't even have a dyno to run a vehicle on.
what kind of vehicle is it? AWD vehicles are exempt from the dyno test until CA makes every smog shop buy an AWD dyno.
Ah, good point!
Originally Posted By: paulo57509
My father (lives in an Enhanced Test County = dyno test) took his vehicle to the test station in the neighborhood.
They just put the sniffer in the tailpipe, ran the tests (static - which it passed) and gave him the certificate.
My father holds a current emissions test license and thought this was highly irregular that the shop didn't even have a dyno to run a vehicle on.
what kind of vehicle is it? AWD vehicles are exempt from the dyno test until CA makes every smog shop buy an AWD dyno.
Ah, good point!
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
Originally Posted By: brianl703
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
4. car's owner removed the bulb.
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
4. car's owner removed the bulb.
That reminds me..
5. Bulb is burned out.
5. Bulb is burned out.
ASM 25/25 or Acceleration Simulation Mode, this test requires using a dynamometer. Is this method not way more accurate than an OBDII scan?
Last edited:
Originally Posted By: bdcardinal
Originally Posted By: paulo57509
My father (lives in an Enhanced Test County = dyno test) took his vehicle to the test station in the neighborhood.
They just put the sniffer in the tailpipe, ran the tests (static - which it passed) and gave him the certificate.
My father holds a current emissions test license and thought this was highly irregular that the shop didn't even have a dyno to run a vehicle on.
what kind of vehicle is it? AWD vehicles are exempt from the dyno test until CA makes every smog shop buy an AWD dyno.
2003 RWD GMC Safari.
Originally Posted By: paulo57509
My father (lives in an Enhanced Test County = dyno test) took his vehicle to the test station in the neighborhood.
They just put the sniffer in the tailpipe, ran the tests (static - which it passed) and gave him the certificate.
My father holds a current emissions test license and thought this was highly irregular that the shop didn't even have a dyno to run a vehicle on.
what kind of vehicle is it? AWD vehicles are exempt from the dyno test until CA makes every smog shop buy an AWD dyno.
2003 RWD GMC Safari.
The OBD2 test at the station will tell if you recently cleared any codes, and you will fail for 'cheating'.
Some cars need 50 starts before this hidden tell tale code is removed.
Some cars need 50 starts before this hidden tell tale code is removed.
from what I know the smog check 2 in california is for most counties, if you live in the more remote areas then smog check 2 hasn't gotten to you yet, but don't worry, the epa will find you soon!
on 1996 and newer cars the smog machine monitors readings via the obd port, IF you have a code in the computer, although the light is turned off, you failed. Of course if the light comes on during the test, you failed too. If the bulb is burned out, you failed.
I've always made sure to do a computer scan then delete anything in the computer before a smog, haven't had any issues with them telling me anything about erasing codes.
They usually let the machine make the determination.
for post 1995 cars, they inject nitrogen into the gas tank trying to force a fuel leak so they can fail you for that too.
I"m all for clean air, but the way they go about doing some of this stuff is ridiculous. Just another liberal who dreams up an idea and makes the epa implement it without thinking of issues or ramifications.
welcome to california.
on 1996 and newer cars the smog machine monitors readings via the obd port, IF you have a code in the computer, although the light is turned off, you failed. Of course if the light comes on during the test, you failed too. If the bulb is burned out, you failed.
I've always made sure to do a computer scan then delete anything in the computer before a smog, haven't had any issues with them telling me anything about erasing codes.
They usually let the machine make the determination.
for post 1995 cars, they inject nitrogen into the gas tank trying to force a fuel leak so they can fail you for that too.
I"m all for clean air, but the way they go about doing some of this stuff is ridiculous. Just another liberal who dreams up an idea and makes the epa implement it without thinking of issues or ramifications.
welcome to california.
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
You missed the whole point. The point of an emissions test isn't to tell YOU that your car is in compliance, it's so that the STATE knows it's in compliance.
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
You missed the whole point. The point of an emissions test isn't to tell YOU that your car is in compliance, it's so that the STATE knows it's in compliance.
Originally Posted By: Vikas
If you erase code, your readiness monitors will show up as incomplete. You can have only none/one/two monitors as incomplete, depending upon model year of the vehicle.
- Vikas
Here it's allowed 3 incomplete for 96-00, 2 for 01+.
Funny thing is a whole bunch of them run very quickly... but a misfire or EVAP leak resets everything all over again.
If you erase code, your readiness monitors will show up as incomplete. You can have only none/one/two monitors as incomplete, depending upon model year of the vehicle.
- Vikas
Here it's allowed 3 incomplete for 96-00, 2 for 01+.
Funny thing is a whole bunch of them run very quickly... but a misfire or EVAP leak resets everything all over again.
Mass gets the OBDII for '96+. No test for 95- as many have rotted away. Prior to that, the OBDI cars were tossed on a dyno. Even with my Jeeps, I never had a problem passing smog. Even with the beat body, the drivetrain is always in top notch condition. I've never failed for emissions or safety.
Despite not having the test anymore, when it came time to replace my full exhaust on my '92 (mostly trail beater), I still ordered up a new cat and did it the right way. Never understood people who removed their cat to make "tons of power" on their stock engine. One of the last dyno sheets I saw with cats vs open, the cats only cost a couple HP. Certainly not worth the extra pollution.
Despite not having the test anymore, when it came time to replace my full exhaust on my '92 (mostly trail beater), I still ordered up a new cat and did it the right way. Never understood people who removed their cat to make "tons of power" on their stock engine. One of the last dyno sheets I saw with cats vs open, the cats only cost a couple HP. Certainly not worth the extra pollution.
Originally Posted By: bdcardinal
Originally Posted By: brianl703
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
4. car's owner removed the bulb.
Checking to see if the Check Engine Light illuminates after you key on is part of the test.
Originally Posted By: brianl703
Originally Posted By: qship1996
Seems like a total waste of money{on 1996+ cars} to drive in only to tell you what you already know if your "check engine' light is not illuminated.
If the light is not illuminated, it could mean one of the following:
1)The readyness tests have not completed.
2)There are pending codes, and the light will soon illuminate.
3)There are no problems and everything is fine.
Without a scantool, you cannot know which is the case..and only in case #3 will the vehicle pass.
4. car's owner removed the bulb.
Checking to see if the Check Engine Light illuminates after you key on is part of the test.
Wire it in parallel with the alternator light...
Originally Posted By: Vikas
NYTimes article said that garages were hooking up the state test equipment to a "test pass simulator machine". Wow, does somebody make and sell test pass simulator machine to repair shops? Is Snap-On supplier for these simulator? Reputable shops only purchase from Snap-On :-_
- Vikas
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
NYTimes article said that garages were hooking up the state test equipment to a "test pass simulator machine". Wow, does somebody make and sell test pass simulator machine to repair shops? Is Snap-On supplier for these simulator? Reputable shops only purchase from Snap-On :-_
- Vikas
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
I think you could also make a simulator with an ELM327 and a PC running special software.
Originally Posted By: Trav
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
I had never heard of such a thing! Is it simulating a car for the OBD-II testing equipment? Do you have URL handy for this simulator?
My original comment was in jest.
- Vikas
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
I had never heard of such a thing! Is it simulating a car for the OBD-II testing equipment? Do you have URL handy for this simulator?
My original comment was in jest.
- Vikas
Originally Posted By: Vikas
Originally Posted By: Trav
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
I had never heard of such a thing! Is it simulating a car for the OBD-II testing equipment? Do you have URL handy for this simulator?
...
From the Ease Web site:
http://www.obd2.com/emissions/data/emissions_ver_test.htm
According to their web site, it has safeguards that should make it easy for software to spot its use in an emissions testing program.
Originally Posted By: Trav
The company who makes the OBD simulator is Ease,its a programmable unit for checking new OBDII testing equipment.
I had never heard of such a thing! Is it simulating a car for the OBD-II testing equipment? Do you have URL handy for this simulator?
...
From the Ease Web site:
http://www.obd2.com/emissions/data/emissions_ver_test.htm
According to their web site, it has safeguards that should make it easy for software to spot its use in an emissions testing program.
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