Illinois emissions questions
Thread Starter
Pro
Joined: Sep 2005
Posts: 538
Likes: 9
From: Geneva, IL Bring back the Chief!
St. Jude Donor '06-'07-'08-'09-'10,'13-'14,'19-'20-'21-'22
Illinois emissions questions
Hi,
I've done a search and can not find the specific answers to the following..................
I've got mods per my sig below. All done by myself. Today I failed the Illinois emission test with "not ready" in two areas: Evaporative Control SYstem and Oxygen Sensors.
I finished replacing the clutch a couple of weeks ago, and also fixed a vacuum leak which required removal of the battery. Since I got her back on the road, I've driven about 225 miles and am am not throwing any codes. I had to disconnect the ECS when I pulled the drive line, but I'm sure I connected back up (otherwise I'd be throwing codes, which I am not???) With the LG headers, I needed to disable the rear O2's to keep from throwing codes. And I also put a wideband in the rear bung. I am also running hight flow cats.
What I'm wondering is:
1) How many cycles does the Evap system require before it goes to "ready"? Is a "not ready" after 225 miles appropriate?
2) Does Illinois allow for a pass with a single "not ready"? I see other states allow for some of these situations, but its obvious after today that Ill does not allow 2 or more.
Any input appreciated.
I've done a search and can not find the specific answers to the following..................
I've got mods per my sig below. All done by myself. Today I failed the Illinois emission test with "not ready" in two areas: Evaporative Control SYstem and Oxygen Sensors.
I finished replacing the clutch a couple of weeks ago, and also fixed a vacuum leak which required removal of the battery. Since I got her back on the road, I've driven about 225 miles and am am not throwing any codes. I had to disconnect the ECS when I pulled the drive line, but I'm sure I connected back up (otherwise I'd be throwing codes, which I am not???) With the LG headers, I needed to disable the rear O2's to keep from throwing codes. And I also put a wideband in the rear bung. I am also running hight flow cats.
What I'm wondering is:
1) How many cycles does the Evap system require before it goes to "ready"? Is a "not ready" after 225 miles appropriate?
2) Does Illinois allow for a pass with a single "not ready"? I see other states allow for some of these situations, but its obvious after today that Ill does not allow 2 or more.
Any input appreciated.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
I think to go in "ready" mode, it also has to do with how many ignition cycles and number of miles driven. This might be a dumb question, but how long did you drive the car the day you took it too emissons? The hi-flow cats take longer to warm up also...
Sorry I cant be of more help...
bump ttt
Sorry I cant be of more help...
bump ttt
Intermediate
Joined: May 2008
Posts: 42
Likes: 0
With long tube headers you will need to have P0430 and P0420 disabled.
You can have one test not ready as long as it is not the Catalyst test.
Evap is the hardest to get to ready on my opinion follow the GM drive cycle and make sure you let the car sit for more than 4 hours after your drive cycle. The PCM still does tank pressure tests after the car has been shut off.
http://www.epa.state.il.us/air/vim/faq/obd.html
Look 3/4 of the way down on the page for the exact answer.
You can have one test not ready as long as it is not the Catalyst test.
Evap is the hardest to get to ready on my opinion follow the GM drive cycle and make sure you let the car sit for more than 4 hours after your drive cycle. The PCM still does tank pressure tests after the car has been shut off.
http://www.epa.state.il.us/air/vim/faq/obd.html
Look 3/4 of the way down on the page for the exact answer.
Last edited by Noga; May 19, 2008 at 10:40 PM.
Racer
Joined: Apr 2006
Posts: 405
Likes: 3
From: FRESNO CA
Dont know too much about Illinois emissions but you can cycle your pcm in less than 15 minutes. My computer cycles in just two 5 mile runs. More info here http://www.obdii.com/drivecycle.html
Thread Starter
Pro
Joined: Sep 2005
Posts: 538
Likes: 9
From: Geneva, IL Bring back the Chief!
St. Jude Donor '06-'07-'08-'09-'10,'13-'14,'19-'20-'21-'22
Thanks for input.
I drove the car about 15 miles to the inspection station (stupid Illinois just closed the one close-by). And she was at normal operating temp for the test.
I took a look at the cycle requirements per Noga and i must admit that the car has not had a consistent 5 mile run at 55mph since she got put back together. So maybe that is it.
I also noted that my HPTuners has a scanner for the different sensors and should be able to tell me when the evap hits "ready", so I'll try that.
Like I said earlier, I have disabled the rear O2's so I expect to get that "not ready", but I'm wondering if I can sneak by with a single "not ready".
All this is such a PITA that I now wonder what everybody else in Illinois (with LT's and disabled rear O2's) does to get by.
Thanks for input. If it doesn't rain today, I'll try the cycle procedure and re-read status' tonight.
Incidently, the kid who tested the car made a few remarks about the Corsa's and asked about the headers. I suspect that he sensed a bit cam under the hood, but I was afraid to discuss much with him and draw attention. Then when I went inside for the "explanation of errors" I was also hesitant to open up about mods, so I acted dumb. Maybe I should have opened up and possibly gotten the straight scoop.
I drove the car about 15 miles to the inspection station (stupid Illinois just closed the one close-by). And she was at normal operating temp for the test.
I took a look at the cycle requirements per Noga and i must admit that the car has not had a consistent 5 mile run at 55mph since she got put back together. So maybe that is it.
I also noted that my HPTuners has a scanner for the different sensors and should be able to tell me when the evap hits "ready", so I'll try that.
Like I said earlier, I have disabled the rear O2's so I expect to get that "not ready", but I'm wondering if I can sneak by with a single "not ready".
All this is such a PITA that I now wonder what everybody else in Illinois (with LT's and disabled rear O2's) does to get by.
Thanks for input. If it doesn't rain today, I'll try the cycle procedure and re-read status' tonight.
Incidently, the kid who tested the car made a few remarks about the Corsa's and asked about the headers. I suspect that he sensed a bit cam under the hood, but I was afraid to discuss much with him and draw attention. Then when I went inside for the "explanation of errors" I was also hesitant to open up about mods, so I acted dumb. Maybe I should have opened up and possibly gotten the straight scoop.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Most of us that have long tube headers.cam mods etc get a professional tune by a speed shop, like FLP, Speed INC etc.. they turn off and delete out the Rear 02s
I don't think you will be able to get by with 1 "not ready" If I were you I would get on the phone asap with a Tuner rather than trying to get by. The tuners are used to dealing with mods and emissions and getting cars to pass. Also, probably better to play dumb, rather than start fessing up about mods. It not legal to run hi-flow cats and longtube headers etc... in IL on a regular street car. Good thing you did not say anything.
Good luck!
I don't think you will be able to get by with 1 "not ready" If I were you I would get on the phone asap with a Tuner rather than trying to get by. The tuners are used to dealing with mods and emissions and getting cars to pass. Also, probably better to play dumb, rather than start fessing up about mods. It not legal to run hi-flow cats and longtube headers etc... in IL on a regular street car. Good thing you did not say anything.
Good luck!
Intermediate
Joined: May 2008
Posts: 42
Likes: 0
Remember, vehicles are rejected when more than two non-continuous readiness monitors are “not ready” for 1996 to 2000 model year vehicles, or when more than one non-continuous readiness monitor is “not ready” for 2001 and newer model year vehicles. Additionally, the catalyst monitor must be “ready” at the time of any re-test after a vehicle failed an initial test for any catalyst code
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