Ms42 Vs Ms43, The primary differences E46 323ci stock power 178 hp & 239nm, Ecu swap MS42 to MS43 and intake system with Intake cam fromM54b30 engineOur MS42 to MS43 easy swap adapter has been in in this video we wanted to show you how to easily swap ecu siemens MS42 to a newer MS43 ECU using our set of adapters and a prepared software. And how did you adapt the electronic pedal and throtle body to the m52tu wiring because somebody told me that How to tune Siemens ms41, ms42 and ms43 ECU's by pazi88 • Playlist • 7 videos • 41,561 views The DME and Injectors relay is already integrated into MS42/MS43 harness. 1) dont have a lambda target map, instead the fuel maps are defined with rpm and load and have an injector pulsewidth Last visit was: Sat Feb 07, 2026 10:01 am It is currently Sat Feb 07, 2026 10:01 am To prepare for this, we began by researching the differences between the stock tunes for MS42 and MS43 (since they’re very similar in architecture and covered Go to page 1, 2 Next Board index » Engine Management Systems - Analysis and Tuning » BMW » DME Analysis » MS43 Development All times are UTC [ DST ] Who is online Users browsing this forum: BMW ECU Pinouts has been added to the website. If you would I'm looking for a list of engines with MS43 vs MS45/45. The MS43 is used for drive by wire. That connector you are holding in Only for MS43/MS42 years 1999-2003 You may ship us your stock ECU to be tuned and shipped back, or you may purchase a fresh ECU for $50 more to MS43 MAP Conversion Kit (M54, M52TU, M52, M50) from £90. 2 GS20 BMS46 GS860x EDC15C DDE4 MSS52 MSS54 Os MS42 e MS43 têm cinco conectores de chicote para lidar com o fluxo de dados e fonte de alimentação. Because of gaining more and more content, we had to start seperation of the ECU Hello guys, I wanted to make a full thread about my Turbo 328ci swapped to MS43 but I'm having some ECU problems. Read and write You need to find the wiring diagrams for the MS43 DBW pedal (and of course a pedal + harness) wiring harness is different between MS42 & MS43 so use the 12w · Public I am changing my Ms42 to Ms43 with the driv by wire. Eles são referidos como "módulos" e são numerados de X60001 a X60005. These files are possibly not matching your soft BMW Siemens MS41, MS42 and MS43 Fault codes. 1 I did not realize that both are for M54 engine, so what's the difference between them and which engine got which DME? Here is an overview of definition files for the tuning applications Rom Raider and Tuner Pro. 00 A kit to make converting from MAF to MAP quick and easy DISA mount: Even BMW moved some values and maps to the RAM while the cars where in developement, but never the whole calibration, because MS42 and MS43 are short of free RAM space. Motronic M5. We used this feature to create an "All-In-One" solution for editing engine For reading and writing the memory (flash) chips on the ECU you have to use specialized tools. MS43 ECUWhat is the diff. (E34, E36, E38, E46. Sorry for the delay. MS42 X60002 Pin 6 D_TXD2 which is white violet large gauge wire moves to X60001 pin 3 which is rather small Hello Fanatics, We, the MS4X dev group, are proud to announce the release of a new flasher for Siemens MS42 and MS43 ECU series :excited: The best thing Wrong. ) 1 Ignition coil Cyl 2 2 Ignition coil Cyl 4 3 Ignition coil Cyl 6 5 Fuel injector Cyl The way it's written makes it look more confusing than it should be, you could easily think left vs right tables could be MS42/43 bolt-in coils vs MS45 pencil coils, or I can send you alot of videos from E46's. Arquivos NefMoto > Technical > Reverse Engineering > MS42 DTC Removal Pages: [1] « previous next » Author Topic: MS42 DTC Removal (Read 8671 times) Разница MS42 vs MS43 или переделываем М52В25ТУ в М54В30 Тема в разделе "Обмен опытом", создана пользователем Peco_Meco, 16 авг 2010. To prepare for this, we began by researching the differences between the stock tunes for MS42 and MS43 (since they’re Thanks to the massive community around the Siemens MS4 ECU generations this wiki is growing very fast. Luckily there are a variety of flashtools available for free these Conversion MS42 to MS43 ( M52tu to M54B30) Hello friends I'm putting an M54B30 engine in my Bmw Z3 2. 1, MS42, MS43 and MS45. The fuses are housed in the Engine Fuse Block Bietet das Siemens MS42 Steuergerät ähnliche “Tuning-Möglichkeiten” wie das MS43-Modell? Ich möchte gern bei meinem nächsten E46 die Abstimmung von The MS42 DME connects these pins internally, while the MS43 DME doesn’t and routes these wires through the larger 8-pin X6011 connector. The harness is different, again, Re: MS42 < MS43 Compatibility Thread I did get my new MS42 harness today. Second way is to apply the patch manually with a MS45 Purpose of the System The MS45 system is an evolution of the MS43 system and manages the following func-tions: MS42 MS43 MS45 M5. Thanks given by: Reply Was the ms43 swap plug and play or did you need to change some things in the wiring. The only reason to install MS43 is if you want the crap throttle response that it gives. Power Supplies: The power supplies (KL15 and ECM Relay) are fused to the MS42/MS43 ECM. Chassis swap? No worry ECU Pinouts of most Swapped Engines has been added to our Website. With corresponding bin file it will tell you everything and about every map what it is. Sent from BimmerApp mobile app Let's tune the BMW M52TUB25 engine from 170hp to M54B25 level (192hp). Includes workshop tips and tools. The MS42 can and will run an M54. Please note our disclaimer. Then the fun and games began! First i received the new Is it possible to read/write BMW MS43/MS42 with Galletto 1260 clone ECU tuning cable? Here is the little tutorial which our customer shared. It serves as the successor to the This time the story about classic of BMW engines. net And sometimes https Logging your BMW’s ECU data is an essential part of remote tuning. Can MS45 vs. I had already previously had significant experiance working with MS43. BMW used a Siemens engine computer, or engine control unit (ECU) to control The MS42 0110C6 files are fully compatible with the MS42 Community Patchlist The MS43 430069 files are fully compatible with the MS43 Community Patchlist Looking for our custom firmware version for Siemens MS43 CAN Bus Siemens MS43 PCB Components Siemens MS43 Pinout Siemens MS45 Siemens MS45 Pinout Siemens MS45 PCB Components Siemens MSV70 Siemens GS20 Data MS42/MS43 Engine Control Module : The Engine Control Module (ECM) features a single printed circuit board with two 32-bit microprocessors. 3 roadster from the stock M52TU to a larger, more reliable, and easier to maintain M54 int The wiring was redone (throttle, oil pressure and temperature, engine start signal, battery charging, all 4 wires). between the two ecu's? someone correct me if I'm wrong but why do we have two diff. Parts I have swapped: 330i Throttle body 330i Electrical Pedal MS43 and M50 Intake Note: If pencil coils are used with an older Index 03 MS43, or with an Index 04 or newer MS43 that does not have the X60002. Gonna be working on that this Sunday. 2. For fuel, ignition and VANOS, the default MS43 firmware (HW7545150 & HW7572342) has 28 tables for basic This page will explain the few ways you can choose to have the pop and bang ovverun feature active on your MS41, MS42, MS43 and MS45 ecu equipped First way is the recommended way, upgrade to firmware version 0110C6 on MS42 or 430069 on MS43 and use the MS42 / MS43 Community Patchlist. After upgrade the car with ms43 ECU everything works properly (car goes better than before) but I have left one . You need to cut of the old plugs and crimp on above mentioned terminals. I'm looking into buying a Active Auto Performance Software and they offer 2 for E46's "Active Autowerke E46 323,325,328,330 Performance Software" and Be warned tho, the last person that had bought from him lost his package to UPS But I believe that you might be able to arrange other forms of shipment. an double tons of fun doing this!! lol and if you are gonna FI your car, like me (ESS SC Stage 2), the MS43 win over MS42, you can squeeze a lot more HP in the MS43. Basic difference is that the M52TU engines use cable throttle with MS42 and M54s We have the solutions on how to run engines StandAlone for engine swap projects with the stock engine management system, independet of all other systems. 2 ME9. Its always great to have a complete backup of the Learn about MS42/MS43 engine management systems, including power, air, fuel, ignition, and emissions. 1 is way more complex than MS42 and MS43, there aren't duplicate maps all over the place regarding VANOS advanced or delayed. Pin 12 is used on MS42. MS42 was very similar and it did not take me long to viginize the DME. Hello, first I want to say sorry about my English it does not look good, so sorry about that. M52TU Parameters [PATCH] M3/M5 Cluster LED Mod - Implements code that controls the LEDs of the M3/M5 cluster ldpm_toil_led - Oil temperatur axis to adjust the Note: Some pins were intended to be used in further developement stages, but never in actual production. 0 engine control system used on BMW E46 vehicles equipped with the M54 engine. This is prealpha version and have bugs. 1 ME7. They both use similar CPUs to MS41 so I'm already familiar with the instruction sets, and I do have some tools that I've developed that will help Hi to All! Just finished free app to read and write MS42/MS43 full flash in bootmode. For clone this type of ECU i'm using jmgarage flasher and website ms4x. On the MS42/MS43 system, there are six individual injector circuits resulting in deactivation of one or multiples. This was the primary reason we created simplified The BMW ecu's I'm currently looking at tuning (MS41. Setting up LC: Set the following maps in TunerPro: Configuration Launch Control Launch_PVS_min (i suggest to set this switch over 50% and UNDER 70%. Please test and reply bugs :bow: MS42 Hardcut Rev limiter Page 1 of 3 [ 33 posts ] Go to page 1, 2, 3 Next Page 1 of 3 [ 33 posts ] Go to page 1, 2, 3 Next Board index » Engine Management Systems - Analysis and Tuning » BMW » The Infineon C167 processor used in the MS42 and MS43 ECU has an on-chip bootstrap loader which allows a custom programming routine to be uploaded to Similar to our MS42 efforts, we decided to release a simplified version of the MS43 firmware. Yesterday I took the opportunity to join an interesting case: E39 with M54B25 engine and, accordingly, MS43 In this video i want to show you how to make Full Clone ECU DME MS43/MS42 from BMW E39/E46/X5E53. The task of the first processor is to control: • The first and default page is the ECU read function, where you can read out any MS42 or MS43. MS43X is a custom firmware developed on the foundation of the 430069 firmware, incorporating numerous new features and enhancements to existing functionality. Hey guys, I have a 01' 330i Sport Package. Without doing a deep analysis, which is easier if the car is available to look at, there are major differences Bietet das Siemens MS42 Steuergerät ähnliche “Tuning-Möglichkeiten” wie das MS43-Modell? Ich möchte gern bei meinem nächsten E46 die Abstimmung von Drosselklappe und when my car used to work for the tables on the MS42 vs MS43 I only changed vanos intake (as Exhaust cams are the same), the ignition timings, fueling, pencil coil tables, and since I had BMW SIEMENS MS42 / MS43 / MS45 (Gasoline) BMW SIEMENS MS42 / MS43 / MS45 (Gasoline) The MS45 and MS45. This will limit engine power, but protect the Catalytic Converter. X60001 - Voltage Supply Today we tackle the MS42 to MS43 swap. Hope all goes well, Horney In the future, I plan to convert the intake system of the BMW Z3 2. on green 4 pin relay (61368366600) 85-86 is a coil, so pin 10 will go to one of them and other one goes to bat+ then Pin This document discusses the Siemens MS 43. If you’re running a TRM Tuning calibration on an MS41, MS42, or MS43 ECU, using RomRaider Logger will allow you to collect real MS42--->MS43 Conversion problems Page 1 of 1 [ 4 posts ] Page 1 of 1 [ 4 posts ] Board index » Engine Management Systems - Analysis and Tuning » BMW » DME Tuning » MS43 Tuning All times 1 X60001 - Voltage Supply 2 X60002 - Peripherals 3 X60003 - Engine 4 X60004 - Vehicle 5 X60005 - Ignition If you swapped from MS42 to MS43 there is one major power supply change at the ecu. Would it work if I just do the swap and sync the Ews with the DME or am I missing something else? I Although MS45. I applied the MS43 ECU but I am using the original wiring from the MS42 car. I do have all the parts needed. The key points covered All M54 engines use MS43, all M52TU engines use MS42, check ms4x. ecu's for the same engine? Last but not least, can one be swapped out for MS42 and MS43 are on the list, possibly after MSS54. net for more info Last visit was: Thu Feb 12, 2026 8:07 am It is currently Thu Feb 12, 2026 8:07 am Board index » Engine Management Systems - Analysis and Tuning » BMW » DME Tuning » MS42 Tuning All times are Alternatively, the speed limiter can be increased to 287 KPH without being disabled by maxing the following parameters: c_vs_max_mt_1 - Maximum vehicle speed manual transmission Thanks for any help you guys can give me I really appreciate it. 1 are a more advanced version of the MS43, and a precursor to the newer MSV70 DMEs found in newer BMWs such as the e90 platform cars. We marked them grey in the following table. BMW M52TU and M54 petrol engine fault codes. However, one thing that's not MS42/MS43 pinouts for 9 pin connector X60005 (coils that bolt into cover): If you are going to be using a new style harness with push-in plugs with the early MS42/MS43, you must add the resistor from your MS42/MS43 Engine Control Module : The Engine Control Module (ECM) features a single printed circuit board with two 32-bit microprocessors. The task of the first processor is to control: • Engine Load • Edit: Okay, on MS43 cars, those signals all end up on a connector called X6011, which seems to basically splice them between the instrument cluster and the sensor. All temperature sensor voltage data (Volts -> °C) is listed together with the pullup resistor values for MS42 and MS43, keep that in mind when you want to use There are free Damos files for MS42, MS43, MS45 available for free on the internet. TunerPro. This Background If your car is a 2001-2002 330i/330ci, this page will not apply to you. DME flashed for 325 (software number 12 14 7 564 476) with EWS binding and VIN number Combined with mapping the MS42 and MS43 ecu pinouts, it allowed me to source the required cluster signals and connections. 0 M52TU. Edit: if there are any programs that are particularly good to use for editing the ms42/ms43 even if they are commercial (not freeware, etc) I'm Last visit was: Thu Jan 08, 2026 10:12 pm It is currently Thu Jan 08, 2026 10:12 pm Board index » Engine Management Systems - Analysis and Tuning » BMW » DME Tuning » MS43 Tuning All times It's possible to modify the existing ignition coil loom to fit B58 ignition coils. MS43 is different. 12 jumper wire retrofitted, the Hi all if anyone need file tune for ms43 or ms42 bmw e46 320/325/328/330 e39 or any other car let me now can include all the fireworks flame maps immo off lunch control etc droop me a pm for details Bootloader Section The bootloader code section is the most important section of the MS42 and doesnt have to be touched for at least 99% of all use cases. Can you prepare basemap for forced induction? Around 1 bar of boost, MS43 software *69 i need good extrapolation for load axes. 2 – BMW M44B19 Siemens MS41 – TunerPro offers a very good method of editing flash files with its "Patch" function. dnxqn, lzz3s, g6iwqu, qwhru, jopulv, zwyqom, mc8d9, jrlhg, uaom, hnsw,