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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 > Inspection question, which map? jb4



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      01-08-2013, 09:39 PM   #1
Goldenchild
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Inspection question, which map? jb4

I live in PA, and today I set my jb4 to map 0 because I was going in for an inspection and emission test. My friend that is a tech at bmw, texted me and said that the readiness codes were not ready and thought maybe I cleared it. So my question is, should I leave it on map 0 now, and drive it for a few days til the emission codes are ready for testing. Or should I leave it on map 3 like I have been? And also, when you switch from map 3 to 0, does that automatically clear all codes. I have no check engine lights or anything so what could be the problem. Any help or suggestions will be appereciated..thanks guys!
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      01-08-2013, 10:20 PM   #2
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Yes, the tune clears codes (and readiness) periodically. You need to drive a bit on map 0 to set it back. Normal relax driving, no wot!
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      01-09-2013, 09:49 AM   #3
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Ok. Thanks for the info !
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      01-09-2013, 11:15 AM   #4
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Can I just leave it on map3 and get the emissions done?

I drove it today on map 0 and the ses light came on, and im pretty sure its because of my catless downpipe. So is there anything I can do or any way around it?

Codes are 2C90, 3106
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      01-09-2013, 02:18 PM   #5
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+1

I got the same issue right now
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      01-09-2013, 03:14 PM   #6
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Map 5 ?
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      01-09-2013, 03:47 PM   #7
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Not sure that will do it

does anyone know??
I emailed terry he was no help....
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      01-09-2013, 03:51 PM   #8
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Assuming you have a catless downpipe:

Emissions testing can't be done successfully on the n55, period. The current downpipe fix available involve clearing the code (and cat readiness at the same time). You can't get readiness.

To date there is no available (and working) known downpipe fix like on the n54 that can get you pass emission with a catless downpipe.

On map 0 you will get the cat error code (obviously as there is none actually), map 1/2/3/4/5 will auto-clear the code so it won't show on the dash.
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      01-09-2013, 08:27 PM   #9
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So you have to take downpipe off to get inspected??
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      01-10-2013, 01:24 AM   #10
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Quote:
Originally Posted by 335xiRT1
So you have to take downpipe off to get inspected??
yes
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      01-10-2013, 10:54 AM   #11
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yeah, I contacted terry too, and his response was that catless dp are ILLEGAL!!!" no shit. thought maybe he would have had the dp fix by now. I am not going through all that trouble to take it off and put it back on..its a pain in the ass!

my only options are right now,is to find a spanish shop or have my buddy do a waiver.
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      01-10-2013, 11:27 PM   #12
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I got the same response from him.
I'm gonna install o2 spacers. Hopefully that should do the trick.
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      01-11-2013, 08:37 AM   #13
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I'm gonna install o2 spacers. Hopefully that should do the trick.
Please report back with the results!
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      01-11-2013, 08:54 AM   #14
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spacers has been tried and failed before, but hopefully you can make it work
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      01-11-2013, 09:11 AM   #15
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Guess the only way to do this, is to have one of my buddy do a waiver. I'll just have to go buy a emission part that is $150 or over. Make a copy of the receipt for proof of fix, then return it and get my money back lol. Waste of time, but that is the only "fix" I can think off!! Who needs a dp fix lol. I got a better fix for everyone. What's the point of these vendors selling these parts if they can't even make a fix or acknowledge not to buy it since we won't pass emission.
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      01-11-2013, 11:58 AM   #16
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^^^ there is another fix that I heard of people doing... Get a car pulled next to your car when the emission is being done (as long as the tech is someone you know lol) and have them read their emission as if it was your car. I am not sure how true this is but one of the shops I was at stated this is possible for catless peeps.
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      01-11-2013, 04:49 PM   #17
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Quote:
Originally Posted by Goldenchild View Post
What's the point of these vendors selling these parts if they can't even make a fix or acknowledge not to buy it since we won't pass emission.
They're actually pretty clear about these things not being emissions friendly and refer to them as for "off road use only". The whole reason for having cats is to restrict emissions, so a part that removes that will undoubtedly cause you to fail emissions tests unless you can find a way to trick the reader.
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      01-11-2013, 07:58 PM   #18
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Hate this crap. Someone can have a 1985 Camaro with a Nascar engine and they are exempt.
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      01-12-2013, 01:33 AM   #19
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Didn't have this issue with n54 and the procede
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      01-15-2013, 12:13 PM   #20
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Quote:
Originally Posted by Sam335ix
^^^ there is another fix that I heard of people doing... Get a car pulled next to your car when the emission is being done (as long as the tech is someone you know lol) and have them read their emission as if it was your car. I am not sure how true this is but one of the shops I was at stated this is possible for catless peeps.
Wouldn't be able to do that. The emission computer picks up the vin on every car.
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      01-19-2013, 11:14 PM   #21
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Having the same problem now for my car. Im about to part out everything. This is pointless.
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      01-22-2013, 05:57 AM   #22
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Can we just weld high flow cats to our exhausts? there's a member selling ae performance exhaust with cats welded on and claims no cel with his catless dp.
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