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-   -   DIY 02sim *OFFROAD USE ONLY* (http://forum.e46fanatics.com/showthread.php?t=654222)

Autobot325i 03-04-2009 06:05 PM

1 Attachment(s)
Ok, took off my entire exhaust setup (Highline, cats)
and went back OEM but left my ebay headers. just couldn't take the noise anymore...I guess that comes with age.

anyway becoming a member on the M3foum.com and not actually owning a M3...still I want one in the future.

I came acoss a very useful tread about 02sim more than what I got from e46fanatics. sorry! :eek: :rofl:

so here is my DIY and I have to see the true outcome...but I have read on the M3 forum that everyone is passing emission and no SES.


this is all me! but please remember *OFFROAD USE ONLY!*

Props to mills84 on m3forum.net

Autobot325i 03-04-2009 06:31 PM

please be patient the images will load i forgot to resize but I will do another for you 56k'ers


azzy989 03-04-2009 06:39 PM


sesimon2005 03-05-2009 03:39 PM

Have you got an SES light yet or any pending codes?

Autobot325i 03-05-2009 06:12 PM

drove about 100 miles today...no SES but havnt hooked up the OB2 reader yet

Focal E46 03-06-2009 08:39 AM

Where did You get the O2 Sim? THanks

Autobot325i 03-06-2009 01:00 PM


Originally Posted by Focal E46 (Post 9529974)
Where did You get the O2 Sim? THanks


get it quick their site goes up and down a lot...but obviously my order came through :D

Focal E46 03-10-2009 10:08 AM

Thanks Autobot!!

SWINFORD 03-10-2009 10:34 AM

Which one do I get and what is the black box that says O2 Sim?

Autobot325i 03-10-2009 11:45 AM


Originally Posted by SWINFORD (Post 9553453)
Which one do I get and what is the black box that says O2 Sim?

the universal sensor with two white wires. "Universal o2 simulator dual output"

and the black box was purchased at radio shack to house the 02 sim unit.

so far it's been 300 miles and no ses...more to come

Mike@F1 AutohaŘs 03-10-2009 01:23 PM

Another great and useful DIY thread :bow:

Autobot325i 03-10-2009 01:35 PM


koister2001 03-12-2009 01:47 PM

Do I need four for a V8?

Autobot325i 03-12-2009 07:00 PM

getting the universal 02sim 4wires is based on the car make and the fact that you have 2 post 02 sensors
regardless if you're a V8

SWINFORD 03-13-2009 12:38 PM

Any updates?

tim330i 03-13-2009 02:12 PM

Great DIY! I made a PDF copy and attached it to the thread in case your hosting goes down (happens all to often), I hope you don't mind. I also added this DIY to the official collection thread.


Autobot325i 03-13-2009 03:51 PM

thanks...its an honor :bow:

tblue3cibm 03-13-2009 03:56 PM

how much to replicate these results on my car? i might go off roading this weekend :eeps:

Autobot325i 03-13-2009 03:59 PM

depends if you DIY about 40 bucks...want me to do it... :D pm me

BMW_Stu 03-20-2009 04:24 AM

wow, is there a more simple way to do this, im not so great on my electrical skills, it seems sort of simple, but im not so hot with electronics. do u have to tap into wires up top or can you do it at the end where the o2 sensor is.

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