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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Any updates from those of you using ******'s N55 DP fix?



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      04-14-2016, 08:47 AM   #1
turo
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I was just wondering how it was working out for you. I noticed some mixed reviews on Amazon, but those reviews aren't always trustworthy.

http://www.amazon.com/simulator-******-V3-0-CATSIM-Version/dp/B01A9NC26W

Edit: Apparently I can't say their name? Hmm...
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      04-14-2016, 09:10 AM   #2
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works great for me. I disabled cobb, put jb4 to map 0, drove to the gym and back. Next morning, I went to the inspection and passed with all systems ready.
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      04-14-2016, 11:41 AM   #3
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Worked for me too. Jb4 map 0. Drive around for a bit and everything will set to ready
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      04-14-2016, 12:00 PM   #4
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Are you guys running it 24/7? I would like to be able to see error codes and not keep autoclear on all the time.
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      04-14-2016, 12:12 PM   #5
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Ive been running it for a month now with autoclear off.
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      04-14-2016, 12:40 PM   #6
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No updates needed. It works, for everyone.
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      04-15-2016, 09:21 PM   #7
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Quote:
Originally Posted by turo View Post
I was just wondering how it was working out for you. I noticed some mixed reviews on Amazon, but those reviews aren't always trustworthy.

http://www.amazon.com/simulator-******-V3-0-CATSIM-Version/dp/B01A9NC26W

Edit: Apparently I can't say their name? Hmm...
Likely the forum wanted them to become a sponsor but they refused and so they got banned. The forum wants anyone using the forum to sell a product to become a sponsor. They should consider selling through one of the forum sponsors.
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      04-16-2016, 07:41 PM   #8
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Quote:
Originally Posted by JETmn View Post
Are you guys running it 24/7? I would like to be able to see error codes and not keep autoclear on all the time.
Yes
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      04-16-2016, 11:57 PM   #9
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It works great
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      04-17-2016, 01:50 AM   #10
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Whats wrong with 'autoclear'?
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      04-17-2016, 01:52 AM   #11
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I'm using ****** ios2 O2 simulator. Works great. No codes what so ever. My car is a daily driver. What they don't tell you is that the cat HAS to be removed for it to work. I installed it before I removed my stock downpipe. I thought this would be a good test to prove I hooked it up right and not throw a code. Well, it threw a slow response O2 code. Removed the cat, reset the code and have not thrown one since. The simulator needs O2 in the exhaust to work properly.
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      04-17-2016, 10:58 AM   #12
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Quote:
Originally Posted by ArcticWhite
I'm using ****** ios2 O2 simulator. Works great. No codes what so ever. My car is a daily driver. What they don't tell you is that the cat HAS to be removed for it to work. I installed it before I removed my stock downpipe. I thought this would be a good test to prove I hooked it up right and not throw a code. Well, it threw a slow response O2 code. Removed the cat, reset the code and have not thrown one since. The simulator needs O2 in the exhaust to work properly.
Ah I didn't know that! I was hoping to pair it with a high flow cat (which can sometimes throw a code) since I don't want to go fully catless.
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      04-18-2016, 02:10 PM   #13
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Originally Posted by Rob_BMW_PNW View Post
Whats wrong with 'autoclear'?
You don't get to see when you have a real code, it clears it.
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      04-18-2016, 02:59 PM   #14
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Quote:
Originally Posted by ArcticWhite View Post
I'm using ****** ios2 O2 simulator. Works great. No codes what so ever. My car is a daily driver. What they don't tell you is that the cat HAS to be removed for it to work. I installed it before I removed my stock downpipe. I thought this would be a good test to prove I hooked it up right and not throw a code. Well, it threw a slow response O2 code. Removed the cat, reset the code and have not thrown one since. The simulator needs O2 in the exhaust to work properly.
This is very interesting. I wonder what HFC users will do when their cats fail emissions.
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      04-19-2016, 09:36 AM   #15
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Quote:
Originally Posted by Johnny Boost View Post
This is very interesting. I wonder what HFC users will do when their cats fail emissions.
I wonder the same. I was under the impression that we could use this along with a catted pipe and have this take over when the HFC fails. A catless DP is not really feasible for me.
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      04-19-2016, 10:17 AM   #16
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Anyone hookup the sim using some sort of quick disconnect connectors so you could easily remove if you wanted to?

Something like this: https://www.radioshack.com/collectio...ant=5717881797
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      04-19-2016, 12:07 PM   #17
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mine gives weird codes all the time, same goes to my friend, they come and go, he removed and ran the car and only the dp codes show up, but it works to pass emissions.
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      04-19-2016, 01:12 PM   #18
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From my understanding of the IOS2 it does not completely simulate a functioning O2, it just modifies the O2 signal. With a cat upstream, there is very little oxygen in the exhaust stream making it past the cat. Combine that with the signal filtering the simulator does and you get a rear o2 slow response engine light. With no Cat the rear O2 sees the oxygen content moving all over the place (same as the front o2) and modifies that such that it meets the algorithm requirements of the rear O2 signal in the ECU.
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      04-19-2016, 01:17 PM   #19
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Those quick connects shown SHOULD NOT be used. They are a very poor way of making a connection for low voltage signals (or any connection on a car).

A quick connect is a good idea if you want to swap a catted pipe back in to pass emissions. If you do, I would recommend sealed automotive type connectors for the connection. Something like:
http://www.ebay.com/itm/10-Kits-Car-...3D252218499645
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      04-20-2016, 05:44 PM   #20
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Does anyone know where I can find one of these? I have emissions coming up and these things seem to be unavailable online right now.

Last edited by jake1220; 04-20-2016 at 05:50 PM.. Reason: Fixed
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      04-20-2016, 10:30 PM   #21
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Quote:
Originally Posted by jake1220 View Post
Does anyone know where I can find one of these? I have emissions coming up and these things seem to be unavailable online right now.
Pm me. I think I got an extra one
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      04-22-2016, 08:37 AM   #22
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Quote:
Originally Posted by Rob_BMW_PNW View Post
Whats wrong with 'autoclear'?
This clears the codes in the ECU which would cause it to fail inspection at most places. The simulater prevents the codes from appearing in the first place.

The purpose of autoclear is cosmetic. It is to stop the light from showing up.

Quote:
Originally Posted by ArcticWhite View Post
I'm using ****** ios2 O2 simulator. Works great. No codes what so ever. My car is a daily driver. What they don't tell you is that the cat HAS to be removed for it to work. I installed it before I removed my stock downpipe. I thought this would be a good test to prove I hooked it up right and not throw a code. Well, it threw a slow response O2 code. Removed the cat, reset the code and have not thrown one since. The simulator needs O2 in the exhaust to work properly.
This makes sense. The simulater is a true simulator. What I mean by that is that you can think of it as an "electrical catalytic converter".

With a factory cat in place as well as the simulator, you basically have the effects of two cats, hence the slow response.
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