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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > No CEL with Headers (o2 Sim Review)



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      06-21-2017, 08:16 PM   #1
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No CEL with Headers (o2 Sim Review)

I got around to installing o2 sims from A R E A 74. My review is posted here. Summary:

1) No CEL including the dreaded P0420 and P0430.
2) Got all 7 readinsss monitors to set complete.
3) Fluctuating idle since installing headers is now gone.

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Last edited by 3002 tii; Yesterday at 06:46 PM.
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      06-22-2017, 04:57 PM   #2
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Where can I find the review?
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      06-22-2017, 07:00 PM   #3
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Quote:
Originally Posted by Delusive View Post
Where can I find the review?
Where it said "here" in my first post
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      06-22-2017, 11:39 PM   #4
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Quote:
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Quote:
Originally Posted by Delusive View Post
Where can I find the review?
Where it said "here" in my first post
Doesn't show up on mobile.
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      Yesterday, 06:42 AM   #5
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Quote:
Originally Posted by Delusive View Post
Where can I find the review?
Quote:
Originally Posted by 6ixSpd View Post
Doesn't show up on mobile.
http://www.zpost.com/forums/showthread.php?t=1394920
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      Yesterday, 08:37 AM   #6
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I thought they were 8 ready monitors instead of 7
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      Yesterday, 09:29 AM   #7
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Quote:
Originally Posted by rick100 View Post
I thought they were 8 ready monitors instead of 7
Depends on car...
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      Yesterday, 10:03 AM   #8
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Quote:
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Depends on car...
in toronto for emission test they test 8 parameters so I m assuming every car has it
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      Yesterday, 11:00 AM   #9
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Originally Posted by rick100 View Post
in toronto for emission test they test 8 parameters so I m assuming every car has it
128i with 8
http://www.e90post.com/forums/showpo...85&postcount=1

Kyle's 128i with 9
http://www.e90post.com/forums/showpo...&postcount=122

335d with 10
http://www.e90post.com/forums/showpo...1&postcount=15

M3 with 10
http://www.m3post.com/forums/showpos...3&postcount=18

At first I thought maybe it's a function of the type of scanner you're using but my 328i shows 9 with the same scanner used for my Z4
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Last edited by 3002 tii; Yesterday at 11:14 AM.
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      Yesterday, 11:45 AM   #10
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Quote:
Originally Posted by 3002 tii View Post
128i with 8
http://www.e90post.com/forums/showpo...85&postcount=1

Kyle's 128i with 9
http://www.e90post.com/forums/showpo...&postcount=122

335d with 10
http://www.e90post.com/forums/showpo...1&postcount=15

M3 with 10
http://www.m3post.com/forums/showpos...3&postcount=18

At first I thought maybe it's a function of the type of scanner you're using but my 328i shows 9 with the same scanner used for my Z4
for some reason you are missing exhaust gas recirculation (EGR). I scanned mine with 2 different scanner and I get 8 , cat shows red which you are showing complete, odd ...

in any case thats a good alternative. In ontario we are allow to show one in the non ready state , so 7 out of 8 will be a pass
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      Yesterday, 12:00 PM   #11
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Quote:
Originally Posted by rick100 View Post
for some reason you are missing exhaust gas recirculation (EGR). I scanned mine with 2 different scanner and I get 8 , cat shows red which you are showing complete, odd ...

in any case thats a good alternative. In ontario we are allow to show one in the non ready state , so 7 out of 8 will be a pass
Same with me, I can technically pass with one incomplete but it's not clear though if catalyst can be one of the exceptions.
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      Yesterday, 12:53 PM   #12
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Quote:
Originally Posted by 3002 tii View Post
Same with me, I can technically pass with one incomplete but it's not clear though if catalyst can be one of the exceptions.
I asked 4 different shops. 2 of them said it has to be fixed and the other 2 said 1 incomplete is allow regardless of what it is

Technically I should also pass visual as I have high flow cats behind my secondaries. I still got 6 months to go for my first test
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      Yesterday, 04:37 PM   #13
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Saaaweeettttt!!
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      Yesterday, 06:50 PM   #14
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So have you gone to smog yet? Gonna need to see about getting it for my car.
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      Yesterday, 07:08 PM   #15
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Originally Posted by Eagle1oh7 View Post
So have you gone to smog yet? Gonna need to see about getting it for my car.
Not due for one yet but it would be my third time passing with headers (first 2 via tuning) and I expect the results to be no different considering the previous times had one incomplete monitor. This time I have all 7 showing as complete

Many N55 owners have successfully passed with this o2 sim:

http://www.e90post.com/forums/showth...087036&page=13
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Last edited by 3002 tii; Yesterday at 07:24 PM.
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      Yesterday, 10:35 PM   #16
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Quote:
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Quote:
Originally Posted by Eagle1oh7 View Post
So have you gone to smog yet? Gonna need to see about getting it for my car.
Not due for one yet but it would be my third time passing with headers (first 2 via tuning) and I expect the results to be no different considering the previous times had one incomplete monitor. This time I have all 7 showing as complete

Many N55 owners have successfully passed with this o2 sim:

http://www.e90post.com/forums/showth...36&page=13
What state do you live in?
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      Yesterday, 11:33 PM   #17
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What state do you live in?
Currently in CT but passed in NY before
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