Deceleration

test · **Joined:** Wed Jan 24, 2018 1:19 pm **Posts:** 31

BMW E36 320i Compact m52b20 show video Pops & Bangs, exhaust flames 0:09 is fire , https://youtu.be/fE-JwsOZNhA , show reply .. THX guys for sharing information for pops,
Engine modification: sport air filter, stainless performance headers, exhaust without cat, rear muffler is custom modification...

Bahmanson · **Posted:** Fri Dec 31, 2021 6:55 pm

tdehrmann1 wrote:

Pin 16 of MS41 to Ground -> AC on Signal (works only with E36 Flash for MS41)

You can check with INPA if its working or not.

Otherwise you can bridge the AC Pressure Switch but be careful!!! If AC has to less pressure there is no automatical turn off. It will be damaged.

Grounding pin 16 does work with ms41.1/2 ? And ms41.1/2 too matter full flash from e39/e36 for ac simulation?

Robin026 · **Joined:** Mon Oct 16, 2017 9:14 pm **Posts:** 3

test wrote:

BMW E36 320i Compact m52b20 show video Pops & Bangs, exhaust flames 0:09 is fire , https://youtu.be/fE-JwsOZNhA , show reply .. THX guys for sharing information for pops,
Engine modification: sport air filter, stainless performance headers, exhaust without cat, rear muffler is custom modification...

Looks and sounds nice! What maps have you changed? As it's not banging but only spitting flames (which i want)

test · **Joined:** Wed Jan 24, 2018 1:19 pm **Posts:** 31

hello, in car custom exhaust, when engine is warm up and 3-4times add 7k rpm and release gas pedal go flame sorry for bad english

Robin026 · **Joined:** Mon Oct 16, 2017 9:14 pm **Posts:** 3

test wrote:

hello, in car custom exhaust, when engine is warm up and 3-4times add 7k rpm and release gas pedal go flame sorry for bad english

Thx, could you make the table names visible? :oops:

test · **Joined:** Wed Jan 24, 2018 1:19 pm **Posts:** 31

its all in picture

read in table )

tdehrmann1 · **Posted:** Sat Jan 08, 2022 10:28 am

Bahmanson wrote:

tdehrmann1 wrote:

Pin 16 of MS41 to Ground -> AC on Signal (works only with E36 Flash for MS41)

You can check with INPA if its working or not.

Otherwise you can bridge the AC Pressure Switch but be careful!!! If AC has to less pressure there is no automatical turn off. It will be damaged.

Grounding pin 16 does work with ms41.1/2 ? And ms41.1/2 too matter full flash from e39/e36 for ac simulation?

It works only with E36 Flash (MS41.0/.1/.2/(.3)) perfectly. E39 doesn't work due to different AC control routine.

Bahmanson · **Posted:** Sat Jan 08, 2022 7:58 pm

tdehrmann1 wrote:

Bahmanson wrote:

tdehrmann1 wrote:

Pin 16 of MS41 to Ground -> AC on Signal (works only with E36 Flash for MS41)

You can check with INPA if its working or not.

Otherwise you can bridge the AC Pressure Switch but be careful!!! If AC has to less pressure there is no automatical turn off. It will be damaged.

Grounding pin 16 does work with ms41.1/2 ? And ms41.1/2 too matter full flash from e39/e36 for ac simulation?

It works only with E36 Flash (MS41.0/.1/.2/(.3)) perfectly. E39 doesn't work due to different AC control routine.

Thank you for reply and information.

Carrodeguas · **Posted:** Wed Jan 26, 2022 4:04 am

hello friends after converting to 41.2 in a m52b20. I can't get the injectors to inject when decelerating if I get ignition delay but not injection. I have fuel restore at 7000rpm (60° and 90°) but even if it still doesn't work, any idea why it could be? Thank you very much for this great project. I am learning a lot here thanks to you. in 41.0 if I get the slowdown injectors to inject I can check it with a log

Bimmer12 · **Joined:** Mon Dec 14, 2020 1:13 pm **Posts:** 134

jahamuha2 wrote:

AxL wrote:

hellow guys ! I try for serval weeks to make my BMW E39 520i 1998 shoot pops and bangs...i buy SIEMENS MS41 flash tool i buy cable and adaptor i bridge pin 14 and 18...i copy the file from ecu and if someone can help me to modify my map for pops and bangs because i don't want to brake my engine...It's first time when i want to do some tuning and i want to do it well... it's my daily drive car and i can't broke the engine ! So here it's my partial if someone can help me with the normal tune...no't agresive i will appreciate the efforts ! Thanks from romania !

Bahmanson wrote:

tdehrmann1 at first thank a million for your helps !I really tried this, the truth is that it makes some pops and big flames, but the idle is unstable even the engine fails. I don't understand why, or simply because those boards come from an m52b20, I tried it on mine and it works badly

When i tried Pazi88 recommendation my maps was from m52b20. After that u know i've flashed 2.8 rom to the my ecu. Decided to test Pazi88 recommendation now with 2.8 maps.

Increased "Ignition Retard - Decreasing TPS - Step Size" 15 degrees
Left side stock

Decreased "Ignition Retard - Decreasing TPS (closed)" 10 degrees

Decreased "Ignition Retard - Decreasing TPS" 25 degrees

Changed "Fuel Restore - RPM" above my RPM limiter

Result isn't ideal for me(like a "cleanish_e36" fast crackles) but perfect!
u can watch the result video;
https://cloud.mail.ru/public/2YmV/3uBYzMkSi

Greetingz to the all RR forum.

its too hard to check the forums?

Steezer · **Joined:** Fri Dec 17, 2021 12:36 am **Posts:** 7

Carrodeguas wrote:

hello friends after converting to 41.2 in a m52b20. I can't get the injectors to inject when decelerating if I get ignition delay but not injection. I have fuel restore at 7000rpm (60° and 90°) but even if it still doesn't work, any idea why it could be? Thank you very much for this great project. I am learning a lot here thanks to you. in 41.0 if I get the slowdown injectors to inject I can check it with a log

Adjust your timing in first row the more negative you go the more aggressive it is.

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Bimmer12 · **Joined:** Mon Dec 14, 2020 1:13 pm **Posts:** 134

I really tried this, the truth is that it makes some pops and big flames, but the idle is unstable even the engine fails. I don't understand why, or simply because those boards come from an m52b20, I tried it on mine and it works badly

Steezer · **Joined:** Fri Dec 17, 2021 12:36 am **Posts:** 7

Bimmer12 wrote:

I really tried this, the truth is that it makes some pops and big flames, but the idle is unstable even the engine fails. I don't understand why, or simply because those boards come from an m52b20, I tried it on mine and it works badly

Send me your stock bin

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Bimmer12 · **Joined:** Mon Dec 14, 2020 1:13 pm **Posts:** 134

right now I don't have it at hand, since I'm on the phone, my stock item would be the m52bb28 euro, it came from an E39 and it's mounted on an e36, I tried pazis's recommendation but the engine was cold fails ,(unstable idle) and then does not work under normal conditions]

Steezer · **Joined:** Fri Dec 17, 2021 12:36 am **Posts:** 7

Bimmer12 wrote:

right now I don't have it at hand, since I'm on the phone, my stock item would be the m52bb28 euro, it came from an E39 and it's mounted on an e36, I tried pazis's recommendation but the engine was cold fails ,(unstable idle) and then does not work under normal conditions]

You have a cable to read and write? If you do just pull the partial off the car

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RomRaider

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