BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      09-19-2019, 09:02 AM   #1
beerdog1
Enlisted Member
10
Rep
37
Posts

Drives: BMW 135i
Join Date: Aug 2019
Location: Westmont, IL

iTrader: (0)

Illinois emmisions testing

I recently purchased a 2011 135. I am planning to make a few power mods. One will be installing a catless down pipe. Will I have any issues passing emissions testing?
Appreciate 0
      09-19-2019, 09:24 AM   #2
Soterios
BXR
575
Rep
636
Posts

Drives: 2012 135i
Join Date: Jun 2018
Location: Missouri

iTrader: (0)

Quote:
Originally Posted by beerdog1 View Post
I recently purchased a 2011 135. I am planning to make a few power mods. One will be installing a catless down pipe. Will I have any issues passing emissions testing?
You will fail emissions with a catless downpipe unless you install a 'downpipe fix' temporarily for the test. They're around $100 but allow you to pass without having to revert every two years.

On the other side of the river I avoid emissions by just driving less than 6,000 a year. (The 135i isn't my daily) I just get a mileage exemption.
__________________
2012 135i M Sport Alpine White
Appreciate 0
      09-19-2019, 10:03 AM   #3
beerdog1
Enlisted Member
10
Rep
37
Posts

Drives: BMW 135i
Join Date: Aug 2019
Location: Westmont, IL

iTrader: (0)

I had no clue ther eis a milage exemption. The 135i is my daily but I have another car that is a hassle.
Appreciate 0
      09-19-2019, 10:16 AM   #4
beerdog1
Enlisted Member
10
Rep
37
Posts

Drives: BMW 135i
Join Date: Aug 2019
Location: Westmont, IL

iTrader: (0)

Anyone have details on this emissions fix?
Appreciate 0
      09-19-2019, 10:16 AM   #5
Soterios
BXR
575
Rep
636
Posts

Drives: 2012 135i
Join Date: Jun 2018
Location: Missouri

iTrader: (0)

Quote:
Originally Posted by beerdog1 View Post
I had no clue ther eis a milage exemption. The 135i is my daily but I have another car that is a hassle.
It's worth looking into. I also have cheaper insurance because of it.
__________________
2012 135i M Sport Alpine White
Appreciate 0
      09-26-2019, 12:20 PM   #6
beerdog1
Enlisted Member
10
Rep
37
Posts

Drives: BMW 135i
Join Date: Aug 2019
Location: Westmont, IL

iTrader: (0)

Regarding failing emissions testing with a catless down pipe. Is this because there will be a trouble code? Can't this be dealt with in a tune?
Appreciate 0
      09-26-2019, 02:35 PM   #7
Soterios
BXR
575
Rep
636
Posts

Drives: 2012 135i
Join Date: Jun 2018
Location: Missouri

iTrader: (0)

Quote:
Originally Posted by beerdog1 View Post
Regarding failing emissions testing with a catless down pipe. Is this because there will be a trouble code? Can't this be dealt with in a tune?
I'm not an ECU expert by any means, but as I understand it most tunes just suppress the check system so the cat is never in the 'Ready' state and that's why it fails. Maybe it's possible to specifically take care of that, but I don't think any of the off the shelf tunes do.
__________________
2012 135i M Sport Alpine White
Appreciate 0
      09-27-2019, 10:34 AM   #8
Russiandl
First Lieutenant
Russiandl's Avatar
63
Rep
368
Posts

Drives: 2009 Bmw 135i
Join Date: Jun 2014
Location: Roselle

iTrader: (2)

This is something I posted a while back....


Bumping an old thread.. after numerous searches and different opinions on rather a catless DPs install will fail emissions... I decided to go for and go take the test without any DP fix. Before going I scanned the car for I/M monitors and the only one that wasn't ready was the catalyst. Now some people suggested that in Illinois it's an automatic fail if the catalyst are not ready. But that's only true if you're throwing some sort of code for it (P0420-P0439). Conditions of my car were as follows

N54-69000miles
Cobb Stage 2
VRSF downpipes
Stock mids and exhaust
Wagner FMIC
ETS Intakes
VRSF chargepipe
Stock turbos

After the test was performed at the emission station the results were exactly the same as when I scanned them... all monitors ready except catalyst. Got the "PASS" paper and I was on my way. Hope this helps some of you guys that are coming up for testing. Again not everyone's conditions will be same if you have multiple monitors not ready you will definitely fail. If they see a MIL On you'll fail. Make sure you complete a drive cycle if you have recently reset your codes, or performed a battery change. I didn't follow the cycle exactly but did the best I could for about 2 weeks 300 miles or so and that seemed to do the trick. To set all monitors after I had a misfire and cleared the code.

Update as of 03-31-19 I have since went back again to emissions and once again passed with same exact results. No issues
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:31 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST