[Brofessor90]

Originally Posted by Payam @ BMS

The BCM is just an add-on to your current JB4 system.

We'll have it up on the site shortly!

Is there install instructions online? Where does it plug into?

[Terry @ BMS]

Payam can post up some install photos, its pretty straight forward. Uses same JB4 settings/spot as the C43 BCM install.

JB4tech.com - International Turbo Tuning Discussion - View Single Post - Mercedes C300 / C400 / C450 / C43 W205 JB4

[athickjuicysteak]

I recieved the bcm and am in process of installing but the #1 and 2 pin slots are already in use by green wires in the jb4 despite whats written in the c43 post. The next available open is 3 but id like to know for sure before frying something. Also its the weekend and id like to get some logs in.

[Payam @ BMS]

Originally Posted by athickjuicysteak

I recieved the bcm and am in process of installing but the #1 and 2 pin slots are already in use by green wires in the jb4 despite whats written in the c43 post. The next available open is 3 but id like to know for sure before frying something. Also its the weekend and id like to get some logs in.

You can cut the green wire on pin 1 at the bottom after the grommet and splice it to the blue wire from the BCM.

[athickjuicysteak]

Ill get right on that thanks for the quick reply

[Brofessor90]

Originally Posted by Payam @ BMS

You can cut the green wire on pin 1 at the bottom after the grommet and splice it to the blue wire from the BCM.

So i was afraid of something like this and am now glad I didn’t purchase the bcm yet. Can we please get some step by step instructions for install so a potential customer can make an educated decision of whether or not they would be comfortable trying to install this.

[Payam @ BMS]

Originally Posted by Brofessor90

So i was afraid of something like this and am now glad I didn’t purchase the bcm yet. Can we please get some step by step instructions for install so a potential customer can make an educated decision of whether or not they would be comfortable trying to install this.

Yes, I'll work something up and post it up tomorrow.

[Troy j]

What map settings are recommended to run with the Boost Control Module? Are their any other requirements to running it successfully?

[athickjuicysteak]

Idk if the tank was fully mixed yet in the first log, but it was definitely running a little erratic on acceleration in both. Maybe a lil under 5.5 gallons of e85 then topped off with 93. Still more boost than ive ever seen but was very choppy and didnt seem to last long. Intake temps high bc south florida. Car has race test pipes and plugs are gapped down to .022

[Terry @ BMS]

Originally Posted by athickjuicysteak

Idk if the tank was fully mixed yet in the first log, but it was definitely running a little erratic on acceleration in both. Maybe a lil under 5.5 gallons of e85 then topped off with 93. Still more boost than ive ever seen but was very choppy and didnt seem to last long. Intake temps high bc south florida. Car has race test pipes and plugs are gapped down to .022

Something is wrong there. Email me a map0 log. Terry@burgertuning.com

[athickjuicysteak]

Originally Posted by Terry @ BMS

Something is wrong there. Email me a map0 log. Terry@burgertuning.com

Emailed you, i tried capturing another log on map 3 but it didnt want to save for some reason. But i started on map0 then for the hell of it went back to 3 and felt little to no difference. Running very clean now though? Weird

[Brofessor90]

Originally Posted by Payam @ BMS

Yes, I'll work something up and post it up tomorrow.

Not to be a bother its only been a few days but do you have a time frame on when these instructions will be posted?

[athickjuicysteak]

Originally Posted by Terry @ BMS

Something is wrong there. Email me a map0 log. Terry@burgertuning.com

Emailed you some new logs today caught it throwing that p0299 code and limiting boost. Seems to only happen with ethanol in the tank. First log was choppy in the morning and the ride home showed low boost numbers but smooth until it threw a code.

[Payam @ BMS]

Originally Posted by Brofessor90

Not to be a bother its only been a few days but do you have a time frame on when these instructions will be posted?

Shoot me an email please

Payam@burgertuning.com

[athickjuicysteak]

Car is still running like absolute garbage on map 3 even with less ethanol and some octane booster. Stuttering, backfiring, boost coming on WAY too fast. Odd noises from turbo at full tilt. BCM set to FF=150 using the settings from the c43. Afraid im going to blow the turbos at this point

[Troy j]

FF- 100 not 150 from what I saw.

[athickjuicysteak]

Originally Posted by Troy j

FF- 100 not 150 from what I saw.

I was told to test it with ff at 150, i had the same issues at 100 just at different rpm

[Troy j]

Mine is hitting HARD. Take off with a slow roll into 1/2 throttle and it the tires break loose as soon as the boost hits!
This thing is an animal on the low end.

I had to drive about 50-100 miles with the E30 before it normalized. By that I mean it felt kinda rough when first warming up. But its gotten normal now.
Same thing when I dropped the K&Ns in, it acted up for a few miles then it was all good.

I have 20,000 miles on the stock plugs which I plan to change soon. I'm on euther map 3 or 5. Trying to see which one is best.

[athickjuicysteak]

Originally Posted by Troy j

Mine is hitting HARD. Take off with a slow roll into 1/2 throttle and it the tires break loose as soon as the boost hits!
This thing is an animal on the low end.

I had to drive about 50-100 miles with the E30 before it normalized. By that I mean it felt kinda rough when first warming up. But its gotten normal now.
Same thing when I dropped the K&Ns in, it acted up for a few miles then it was all good.

I have 20,000 miles on the stock plugs which I plan to change soon. I'm on euther map 3 or 5. Trying to see which one is best.

I have a similar setup with k&ns but am also running race test pipes. Ive tried a full e30 mix and was told to bring it down to around e 15 or add octane boost. Driven around 150 miles same as yourself but the issue seems to be intensifying. Im going to drop ff back down to 100 like the c43 settings and see if it becomes more manageable. Youre right though, boost is coming in way too hard now at low rpm im breaking loose everywhere if not careful or on purpose. No rough running here besides the usual spotty idle the cars notorious for unless i put my foot in it and consistently around 4k rpm in 2nd/3rd it dumps boost and sounds like a 2 step or stutters HARD. 5k mile old plugs gapped down to .022
Pre bcm i had an issue with map3 on ethanol where the car would go into semi limp mode and cap me at 4 pounds of boost until it was restarted. I think this being an S car it requires some special attention. Ferrari did a few internal upgrades including cams to the S engines that were not on the base model.

[MorganBence]

P51_M3_R2_220713_0943.csv

P51_M3_R3_220712_1747.csv

I am running into an issue with my 2015 Ghibli. I have about 4-5 gal of E85 and the rest 91 on map 5 and now on map 3. When I accelerate, the car is jolting then I assume going into a limp mode with no turbo PSI. Once I turn the car off then back on, the turbo power is back but under hard acceleration, it does the same thing. The code that it's throwing is P0299 with when I looked it up says that it is a low turbo boost. I have the app open during the hard acceleration and the turbo PSI is hitting up to 12 or so before the interruptions and then limp mode.

I attached 2 runs. one is when the problem happens and the other is in the limp mode with no turbo PSI.

[athickjuicysteak]

Originally Posted by MorganBence

Attachment 106949

Attachment 106950

I am running into an issue with my 2015 Ghibli. I have about 4-5 gal of E85 and the rest 91 on map 5 and now on map 3. When I accelerate, the car is jolting then I assume going into a limp mode with no turbo PSI. Once I turn the car off then back on, the turbo power is back but under hard acceleration, it does the same thing. The code that it's throwing is P0299 with when I looked it up says that it is a low turbo boost. I have the app open during the hard acceleration and the turbo PSI is hitting up to 12 or so before the interruptions and then limp mode.

I attached 2 runs. one is when the problem happens and the other is in the limp mode with no turbo PSI.

I had the same issue on map 3 or 5 with any ethanol in the tank consistently until i installed the BCM. now i no longer get the p0299 and low boost limp mode and consistently has more power but it isnt running totally smooth on acceleration.

[MorganBence]

Originally Posted by athickjuicysteak

I had the same issue on map 3 or 5 with any ethanol in the tank consistently until i installed the BCM. now i no longer get the p0299 and low boost limp mode and consistently has more power but it isnt running totally smooth on acceleration.

Do you know if there is going to be any kind of update to fix this? It's odd since this has never happened until now and I have been running this for years.

I wonder if I drop back down to 91 and change maps if this will go away.

[athickjuicysteak]

Originally Posted by MorganBence

Do you know if there is going to be any kind of update to fix this? It's odd since this has never happened until now and I have been running this for years.

I wonder if I drop back down to 91 and change maps if this will go away.

It does go away on map 2 even with some ethanol the tank.

[Oscarmota]

Have you guys have the ‘READ FAILED’ issues ?
Every few days i have to clean the codes even if there isn’t any code for the sport exhaust be activated and now is not even reading the computer.

[athickjuicysteak]

Originally Posted by Oscarmota

Have you guys have the ‘READ FAILED’ issues ?
Every few days i have to clean the codes even if there isn’t any code for the sport exhaust be activated and now is not even reading the computer.

Are you trying to read on accessory? Ive noticed recently i cant connect to the jb4 at all on accessory and have to be in run to read and delete codes