*** OFFICIAL bootmod3 de-cat with OBD readiness THREAD***

Arielf30 · 08-03-2021, 09:02 PM

Quote:

Originally Posted by Doublen420

Quote:

Originally Posted by Arielf30

https://www.ebay.com/itm/O2-oxygen-s...-127632-2357-0
(POST CAT)
No drive cycles just regular driving till i had 1 sensor missing

Thank you! I’m going to give this a shot. Will keep everyone posted

Do you have a bluetooth obd ?

Doublen420 · 08-03-2021, 09:34 PM

Quote:

Originally Posted by Arielf30

Do you have a bluetooth obd ?

I do, Once I install the spacer I’ll drive it moderately and see which monitors populate are ready, etc.

Arielf30 · 08-03-2021, 09:37 PM

Quote:

Originally Posted by Doublen420

Quote:

Originally Posted by Arielf30

Do you have a bluetooth obd ?

I do, Once I install the spacer I’ll drive it moderately and see which monitors populate are ready, etc.

Keep us updated

thejeremyman9 · 08-04-2021, 12:24 AM

Make sure you dont run any kind of o2 spacer or mini cat long term, even on the secondary o2.

TSA8151 · 08-04-2021, 01:29 PM

Took the car in for emissions with the modified stock tune. Car failed throwing a P00BD code. Could this be because of the CTS intake or is it a o2 sensor?

thejeremyman9 · 08-04-2021, 02:20 PM

Quote:

Originally Posted by TSA8151

Took the car in for emissions with the modified stock tune. Car failed throwing a P00BD code. Could this be because of the CTS intake or is it a o2 sensor?

It's probably neither of those things as CTS is one of the few intakes that shouldn't throw a CEL and the code has nothing to do with the O2 sensor. You can try stock intake to confirm.

richsvo · 08-10-2021, 01:48 PM

Can't PM anyone yet (too much of a newbie on this site), but I would LOVE to know what people have done with this, especially in Chicago or IL to pass inspections without having to change their downpipe, etc. back to stock. If anyone has updated info, please post.

Thanks in advance! Once I can PM, some of you may be hearing from me!

20BMW335i16 · 08-10-2021, 03:26 PM

Also looking for this info

Please PM me too, if you can!

Thiagoobello · 08-10-2021, 09:06 PM

Quote:

Originally Posted by outofphase

I just made an updated PDF guide because I have too much time on my hands, PM me if anyone needs the link!

send a PM you!

SsHaaZiii · 08-15-2021, 12:08 AM

Quote:

Originally Posted by 20BMW335i16

Also looking for this info

Please PM me too, if you can!

Sent you a PM as well. Appreciate you putting in the effort!

20BMW335i16 · 08-16-2021, 10:49 AM

Quote:

Originally Posted by SsHaaZiii

Sent you a PM as well. Appreciate you putting in the effort!

Never got a PM from you

Oh well, it looks like I'm putting the factory downpipe back on for testing...no luck getting any info/help

SsHaaZiii · 08-16-2021, 11:56 AM

Quote:

Originally Posted by 20BMW335i16

Quote:

Originally Posted by SsHaaZiii

Sent you a PM as well. Appreciate you putting in the effort!

Never got a PM from you

Oh well, it looks like I'm putting the factory downpipe back on for testing...no luck getting any info/help

Sorry noob here tagged the wrong person. Looking to get a hold of the pdf too, dont even have the stock dp so im reallynin a pickle 😅

bradwags · 08-17-2021, 08:29 PM

Quote:

Originally Posted by outofphase

I just made an updated PDF guide because I have too much time on my hands, PM me if anyone needs the link!

Would you be able to PM me the PDF, thanks!

5w20 · 08-18-2021, 10:08 PM

Quote:

Originally Posted by SsHaaZiii

Sent you a PM as well. Appreciate you putting in the effort!

send over the info to your fellow Texan neighbor

HH1815 · 08-23-2021, 12:25 AM

i have inspection coming up too. any help please? I'm catless dp also

5w20 · 08-29-2021, 08:27 PM

Quote:

Originally Posted by harshil102

For your reference and for anyone else that comes through this thread:

Without the modifications using BM3's cat workaround, there are 3 monitors that will never go to ready: catalyst, oxygen sensor, oxygen sensor heater.
Using Jared's instructions does perfect for setting the cat and oxygen heater tests to ready but will leave the oxygen sensor in not ready. As widely discussed that means you will pass emissions in most states.

BUT what happened for me is the stupid EVAP monitor refused to run and go to ready! So instead of one test not ready, I had 2 tests not ready. One of the most frustrating things I have experienced in a long time. To get the EVAP test to run, (supposedly) with the gas tank between 1/4 and 3/4 full, you have to cold start after at least 5-8 hours of the car being off, idle cold for ~3mins, drive a normal cycle to fully warm, then idle with the car in gear (in drive) for 5minutes. Supposedly this sets the monitor to ready. And if that fails, stop and go driving or just idling the car for a while can help also. I did all of these things constantly for a week and a half. Over 250miles and 12 drive cycles. The damned monitor just would not run the test. Before I flashed the modified stock tune (which does not modify anything regarding EVAP) the test was ready. And I had disconnected my battery just a couple weeks before that so it set in 2 weeks of normal driving last time but would not run on demand in a week and half of conditions specifically tailored to getting that test to run.

Anyways I tried everything to get that stupid test to pass up to late night the night before the last day for me to test my emissions. Since the stupid test still didn't run/pass, I accepted defeat and swapped back the stock downpipe and drove around for 30mins to get everything besides EVAP into ready using the completely stock tune.

Next year I'm going to give myself 60 days or more and then just get the test done as soon as EVAP is ready. FYI if you are in Georgia and you know with good certainty you will own the car for at least another year, emissions tests are good for 12 months or 1 renewal. So you could get 1 test done, go renew your tags, and then go get another emissions test done right after before swapping back to whatever tune/hardware you run. Then just sit on that result for a year and use it to renew your registration in the following year. Makes the cycle of messing with tunes/downpipes/whatever every 2 years instead of each year. That's what I would do, but I'm not completely sure if I will still own this same car.

I recently just took my car to be inspected (was due 01/21

) and it passed with everything ready. It didn't have a single "not ready" monitor.

The EVAP monitor is the most tricky because it requires two drive cycles while I believe all the others are one drive cycle.

Five20Three · 09-01-2021, 06:40 PM

Quote:

Originally Posted by outofphase

I just made an updated PDF guide because I have too much time on my hands, PM me if anyone needs the link!

I am new here and can't PM and could also use the PDF info. Anyone able to help me out? Thanks!!

Five20Three · 09-01-2021, 07:05 PM

Just

Five20Three · 09-01-2021, 07:20 PM

Trying to get my posts in so I can PM

Five20Three · 09-01-2021, 07:26 PM

Sorry to be annoying.

miovo · 09-16-2021, 01:13 PM

Imma jump in here real quick. Trying to pass emissions in GA. Flashed back to stock tune (no DME lock).
BM3 stage 1 normally on my n20 with a VRSF downpipe. i’m banging my head against a wall if anyone can give me some insight for the n20 (if it’s at all different from any others)

Unfortunately i don’t have my stock DP anymore. I can get everything to complete but catalyst and o2.

Jayematic · 09-19-2021, 04:16 PM

Been following this thread looking for a solution for a while now. If anyone can send me a copy of that PDF with instructions on it that would be greatly appreciated ��

08-04-2021, 12:24 AM	#158
thejeremyman9 Major General 4640 Rep 7,943 Posts Drives: 2015 BMW 335i Join Date: May 2019 Location: Cali iTrader: (0)	Make sure you dont run any kind of o2 spacer or mini cat long term, even on the secondary o2.
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08-04-2021, 01:29 PM	#159
TSA8151 Private First Class 58 Rep 144 Posts Drives: 2013 F30 335i msport Join Date: Jul 2018 Location: Maryland iTrader: (0)	Took the car in for emissions with the modified stock tune. Car failed throwing a P00BD code. Could this be because of the CTS intake or is it a o2 sensor? Attached Images Last edited by TSA8151; 08-04-2021 at 02:19 PM..
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08-10-2021, 01:48 PM	#161
richsvo New Member 10 Rep 29 Posts Drives: BMW 435Xi Gran Coupe Join Date: Aug 2021 Location: Chicago, IL iTrader: (0)	Can't PM anyone yet (too much of a newbie on this site), but I would LOVE to know what people have done with this, especially in Chicago or IL to pass inspections without having to change their downpipe, etc. back to stock. If anyone has updated info, please post. Thanks in advance! Once I can PM, some of you may be hearing from me! __________________ Estoril Blue 2015 BMW 435i X-Drive Gran Coupe
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08-10-2021, 03:26 PM	#162
20BMW335i16 Enlisted Member 24 Rep 45 Posts Drives: 2018 BMW 440i xDrive Join Date: Dec 2018 Location: IL iTrader: (1)	Also looking for this info Please PM me too, if you can!
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08-23-2021, 12:25 AM	#169
HH1815 Enlisted Member 20 Rep 39 Posts Drives: '15 BMW 335i 6mt Join Date: Jun 2019 Location: NY/DE iTrader: (0)	i have inspection coming up too. any help please? I'm catless dp also __________________ '15 335i x-drive 6MT. Catless DP, CP, Intake, IC - BM3 STG1 93 '
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09-01-2021, 07:05 PM	#172
Five20Three Registered 0 Rep 4 Posts Drives: BMW M235i Join Date: Aug 2021 Location: Georgia iTrader: (0)	Just
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09-01-2021, 07:20 PM	#173
Five20Three Registered 0 Rep 4 Posts Drives: BMW M235i Join Date: Aug 2021 Location: Georgia iTrader: (0)	Trying to get my posts in so I can PM
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09-01-2021, 07:26 PM	#174
Five20Three Registered 0 Rep 4 Posts Drives: BMW M235i Join Date: Aug 2021 Location: Georgia iTrader: (0)	Sorry to be annoying.
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09-16-2021, 01:13 PM	#175
miovo New Member 1 Rep 14 Posts Drives: BMW X5 sDrive35i Join Date: Nov 2019 Location: Atlanta, GA iTrader: (0) Garage List 2015 BMW X5 [9.00]	Imma jump in here real quick. Trying to pass emissions in GA. Flashed back to stock tune (no DME lock). BM3 stage 1 normally on my n20 with a VRSF downpipe. i’m banging my head against a wall if anyone can give me some insight for the n20 (if it’s at all different from any others) Unfortunately i don’t have my stock DP anymore. I can get everything to complete but catalyst and o2.
	Appreciate 0 Quote

09-19-2021, 04:16 PM	#176
Jayematic Registered 2 Rep 4 Posts Drives: F30 328i Join Date: Sep 2021 Location: New York iTrader: (0)	Been following this thread looking for a solution for a while now. If anyone can send me a copy of that PDF with instructions on it that would be greatly appreciated ��
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