Comprehensive MSS54/MSS54HP DME Information

[sda2]

Is there a disassembly publically available with the maps and routines already defined? I'm thinking about starting something like this, so that additional function could be implemented or disabled.

For example, the flash counter could propably be disabled when skipping/modifiying the funcrtion that does the lookup or write.

I know C167 quite well, but from what Ive learned with MS45 and ME9, MPC is not that complicated to work with, because it has a better decompilation implement in IDA or Ghidra.

[rjskalet]

Does anyone know the hex location for the ISN to clear out so I can realign a dme with the ews. It was in the old thread but I can’t find a cached version of it unfortunately.

[HanSooloo]

I have an 04 M3 with manufacture date of 11/03, so I am guessing/hoping that it has an MSS54HP DME. Trying to understand what is different between having a standard boot loader (stock that came with the car) versus having a CSL boot loader.

[skristedja]

Do these maps look right? This is from a 0401 csl tune hosted this github modified for stock US m3 cams: https://github.com/YulCmr/MSS54_HP_C...info_gathering

Load base map



Full throttle map

[Tchleung]

Odd question, I've been running the same software for quite some time(can't recall the version #) but I've had obd2 scanner and readers always working fine but somewhere along the line of my multiple revisions of my tune and refreshing, my OBD port no longer reports data to and scanners or gauges. It connects to the Bluetooth modules etc as there is power but won't connect to the car. I can tune and connect and read codes via INPA etc but regular scanners no. I know early 2000s there was that encrypted data stream recall. Mine is an 02 but indont know why it would stop working randomly when I haven't changed software versions in a long time. I'm still using a euro based software, same as I have been using for many years without issues. I feel it's almost like the same issue Awron had with their vent gauge where they say it doesn't work on some E46 M3's with a tune and Euro M3's.

Any ideas??

[pasqua]

hello after installing a new non-virgin eeprom and reprogramming with vvid the restart dme not need some virgin eeprom by chance thank you

[R3Z3N]

Is there anyone that knows what is required to do the drive by wire delete,(software wise). So that you can use drive by cable on the S54?
Thanks in advance

There is no good reason to do drive by cable with this engine/ECU.

[heinzboehmer]

My understand is the MSS54 vs MSS54HP only difference is the flash PROM chips, 256KB vs 256KB. So to convert the MSS54 board to MSS54HP, one needs to remove the 2 chips (256KB) from a S54HP then read and save the files using something like the chip programmer below, then program the files into the two new chips (256k), i.e. AM29F400BB-60SC
from https://www.mouser.com/ProductDetail...W34bxMGA%3D%3D
then solder the new programmed chips back to the S54 DME board and now it become a S54HP DME.
Have anyone done this before?

https://www.batronix.com/shop/progra...e%20USB%20port.

https://nam3forum.com/forums/forum/special-interests/coding-tuning/2509-converting-an-mss54-hp-into-an-mss54hp-csl-h-bridge

[sapote]

My understand is the MSS54 vs MSS54HP only difference is the flash PROM chips, 256KB vs 512KB. So to convert the MSS54 board to MSS54HP, one needs to remove the 2 chips (512KB) from a S54HP then read and save the files using something like the chip programmer below, then program the files into the two new chips (512K), i.e. AM29F400BB-60SC
from https://www.mouser.com/ProductDetail...W34bxMGA%3D%3D
then solder the new programmed chips back to the S54 DME board and now it become a S54HP DME.
Have anyone done this before?

https://www.batronix.com/shop/progra...e%20USB%20port.

[sapote]

Is there anyone that knows what is required to do the drive by wire delete,(software wise). So that you can use drive by cable on the S54?
Thanks in advance

This drive by cable never works for SMG as the DME needs to control the rpm.
For 6mt, I'm sure the DME needs to be bypassed the gas pedal encoded data input to avoid it generating the error flag when the TB position feedback not matching with the pedal input.

[Basketcase]

Is there anyone that knows what is required to do the drive by wire delete,(software wise). So that you can use drive by cable on the S54?
Thanks in advance

[pasqua]

Hello I am new on the forum I live in Corsica so please excuse the spelling which comes from google translation my car is a m3 e46 from 2002 where i have already installed the mss54hp with the csl nose and the carbon box i would like to know how to check that the binfull csl is correctly installed because the program numbers in the dme do not change after the flash thank you

[R3Z3N]

Slowly translating the MSS54 funktion document. Otherwise there are hints such as what K_MD_ASC stand for

The readme.md of the first page at github gives some info such as:

K - constants, ie bit switches, flags, etc
KL - Kennlinnie - dataline, for example the linearization curves for sensors
KF - Kennfeld - Map table
The format usually sticks to type_datacontent_axis_axis so KF_TI_N_RF is map:injection:rpm:relative filling

and:

AR ANTIRUCKELFUNKTION Anti-bucking AQ AQUER aquer AUSS Aussetzerkennung Misfire code/detection BA BA ?? BZ Betriebszustaende Operating states CAN CAN_Schnittstelle CAN bus interface/control CAN CAN_Schnittstelle-Slave CAN bus interface/control slave DA D/A_Konfiguration Digital/Analog conversion/configuration DKBA DKBA Contains Alpha-N map DWF Drehzahlwarnfeld Speed warning field DSV Druckspeicherventil Accumulator valve DYN Dynamik dynamics EDK EDK Throttle Body EDISI EDK_Soll_Ist EDK actual EGAS EGAS Electronic Throttle system ?? Eigendiagnose self-diagnosis TI Einspritzung injection ELU Elektroluefter electric fan FGR FGR Cruise Control FR FUELLUNGSREGLER Combustion controller (adapt values) ?? Fehlerfilter Kontrolle error filter VDIAG Fz_Geschwindigkeit Vehicle speed GANG Gangerkennung Gear Recognition/Detection KATH Katheiz_Funktion Catalytic heater function KATS Katschutz Catalytic protection KKOS Klimaanlage air conditioning KM Klopfen knock EKP Kraftstoffpumpe Fuel pump LLR LEERLAUFREGLER Idle control ?? Lambda lambda ?? Lambda-OBD Lambda OBD ?? Lambdadiagnose lambda diagnosis ?? Lamdasondenheizung Lambda probe heating HFM Lasterfassung load detection LU Laufunruhe rough running LL LeerLaufSYNChornisation Idle synchronization LFR Leerlaufregelung Idle speed control LLS Leerlaufsteller Idle adjuster ?? Messwerte Observations MD Momentenmanager Moment Manager NO_FUNCTION NO_FUNCTION Miscellaneous OEK OEK ?? TOG Oelniveaugeber Oil level sensor/readings PDR PDR varies with time (?) ?? Relativer_Oeffnungsquerschnitt relative opening cross SA_WE SA_WE Temperature functions SSP Saugstrahlpumpe eductor SWE Schlechtweg-Erkennung rough road detection SLS, SLP, SLV Sekundaerluftsystem Secondary air system SERVO Servotronic Servotronic adjustable steering ratio system (non-M3) SK Sicherheitskonzept Security concept START Startrelais Starter relay ?? System_Kontrolle System control TW TPU_Synchronisation TPU synchronization TE, TEA Tankentlueftung Tank vent or Evaporator canister purge control LDP Tankleckdiagnose Tank leak diagnosis EVAN, AVAN Vanos EVAN: Intake Vanos, AVAN: Exhaust Vanos ?? Versionskontrolle version control TZ Zuendung ignition SMG smg smg

[NewHouseTM]

Is there any wiki or help that tells what each function of the XDF does?

[E46m3zcp]

Im thinking maybe Rohacell.com
They have an automotive product

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