[rustyminded]

I know it's a nob and i know the answer but some people claimed to do something in coding and acceleration is improved !!!! what's worse the clients say there is an effect :/

seriously people why would you believe something like that.. i saw coding before for the performance in fem-body. first it was in max, second it gave me CEL.

[jaddie]

I am slightly confused by this post.. what are you saying here?

You've had the car coded to somehow improve performance, and want to know how or what?

Or that you've had it done and want to reverse it now because its causing issues at random?

[rustyminded]

Originally Posted by jaddie

I am slightly confused by this post.. what are you saying here?

You've had the car coded to somehow improve performance, and want to know how or what?

Or that you've had it done and want to reverse it now because its causing issues at random?

Noo no, when i was cha m coding something in fem_body i saw something had to do with performance I've changed it but it gave me CEL, then this guy on F30 facebook page claims he does same without even using E-sys and no CEL.. I'm saying could this be possible to code out performance without giving CEL ?!

[rustyminded]

Since mockery is what being used instead of providing information I want to see someone try to talk in my native language which is عربي

[dalto]

This really isn't that complicated. He found a variable in fem_body which had "performance" in the name and he changed it. When he did, the CEL came on. Someone else is saying that they changed this value and are claiming that they saw a performance improvement and that the CEL did not come on.

rustyminded, try posting the actual full name of the function you are talking about in e-sys.

EDIT: Just to be clear I was responding to some posts that are not here anymore for good reason.

[jaddie]

I hope I wasn't included as being an idiot :'(

I had just woken up when I read it so wasn't exactly a high functioning human at the time haha :P

If you do know rustyminded the name for the code that was changed, I'll jump in my car and see what its at & change it and see what the end result is for you

[rustyminded]

Originally Posted by dalto

This really isn't that complicated. He found a variable in fem_body which had "performance" in the name and he changed it. When he did, the CEL came on. Someone else is saying that they changed this value and are claiming that they saw a performance improvement and that the CEL did not come on.

rustyminded, try posting the actual full name of the function you are talking about in e-sys.

Exactly, thanks for clearing up. my English isn't perfect

[rustyminded]

Originally Posted by tboooe

Dude dont mind the few idiots on this forum. As you know, most are willing to help and are understanding of language issues. That being said, can you please let us know the exact code that was changed? I will try it out.

of course. I'll hook the laptop and know exactly it's name thanks man

[rustyminded]

Originally Posted by jaddie

I hope I wasn't included as being an idiot :'(

I had just woken up when I read it so wasn't exactly a high functioning human at the time haha :P

If you do know rustyminded the name for the code that was changed, I'll jump in my car and see what its at & change it and see what the end result is for you

no you weren't haha. I'll check right away

[jaddie]

Haha thanks

Awesome, I have my laptop here with my at my desk so when you let me know I'll open the relevant CAFD and check it out

[rustyminded]

ok it seems it's under class_power in Fem_body. there is also quantity gear and cylinders if you want to change to V12 haha

guys I am not forcing you to try anything. it's something I saw and got my attention.

[rustyminded]

There is another one for transmission, it might be the solution for torque limit ?!!!

[jaddie]

Looking at the values that can be set (for VCM_CLASS_POWER)

It seems to vary from things such as Low Grades all the way up to Super Top Performance Class

I have a 430d Xdrive MSport which defaults to Upper Performance Class (OL)
Checking in the M4 that defaults to Top Performance Class (TL)

So not too sure what these are setting, perhaps some kind of overall limitations for what the car is either allowed or perhaps expected to do?

[cryptocar]

Originally Posted by rustyminded

There is another one for transmission, it might be the solution for torque limit ?!!!

There is no way you could increase the torque limit by coding. That's a physical restriction of the transmission. Also I can assure you there are no performance enhancing options in FEM_BODY. This module controls the front electronic systems of the car such as your headlamps etc. your motor is controlled by DME, steering by EPS, fuel pump by EKFP, transmission by EGS, etc. all the ECUs that have to do with the drivetrain of the car are encrypted and or locked in some way and have very few if any parameters that can be changed by the DIY coder. The only ones in aware of that can be changed simply is enable Sport Auto transmission via VO coding and FDL code LC_Aktiv. But for many people these are already active from the factory.

[rustyminded]

Originally Posted by jaddie

Looking at the values that can be set (for VCM_CLASS_POWER)

It seems to vary from things such as Low Grades all the way up to Super Top Performance Class

I have a 430d Xdrive MSport which defaults to Upper Performance Class (OL)
Checking in the M4 that defaults to Top Performance Class (TL)

So not too sure what these are setting, perhaps some kind of overall limitations for what the car is either allowed or perhaps expected to do?

It's odd because my car has lower power setting for low quality fuel which is ron92. we need someone to verify. if it's something that doesn't make big effect why give cel ?

[rustyminded]

Originally Posted by cryptocar

There is no way you could increase the torque limit by coding. That's a physical restriction of the transmission. Also I can assure you there are no performance enhancing options in FEM_BODY. This module controls the front electronic systems of the car such as your headlamps etc. your motor is controlled by DME, steering by EPS, fuel pump by EKFP, transmission by EGS, etc. all the ECUs that have to do with the drivetrain of the car are encrypted and or locked in some way and have very few if any parameters that can be changed by the DIY coder. The only ones in aware of that can be changed simply is enable Sport Auto transmission via VO coding and FDL code LC_Aktiv. But for many people these are already active from the factory.

that's frustrating so all these companies who claim to have module via obd that removed limit are bs.

well i coded sport auto transmission via fdl not vo in 316 and 320 they said night & day difference.

so why does it give CEL when i change it ?

[cryptocar]

Originally Posted by rustyminded

that's frustrating so all these companies who claim to have module via obd that removed limit are bs.

will i coded sport auto transmission via fdl not vo in 316 and 320 they said night & day difference.

Yup no one has a confirmed way to change VMax via OBD alone, without physically hacking the DME.

Why didn't you VO code sport auto trans.?