S54 engine harness diagram This will take you to a folder on my website and you can browse directly to the year and schematic you want to access. PG 87 in the ETM shows pinout of X6002+picture of X19527 and which pins are jumpered by their caps. · Remove ignition coil cover. Jan 10, 2025 · e46 wiring diagramThe E46 wiring diagram is a vital tool for any BMW enthusiast. Feb 7, 2016 · Please help for found 2006 S54 engine wiring diagram. These kits are made with high temperature automotive grade wiring that Jan 29, 2025 · Bmw work manuals 3 series e36 325tds m51 tour 2 repair instructions 34 brakes 50 slip control systems abs asc 4 ra wiring diagram 318is m42 sal 61 general electrical system 11 harness replacing section of engine manitou mrt 1432 comfort line manual fuul m50 52 s50 simplified r3vlimited forums plug and play swap e46 m3 s54 kassel… Read More » Jan 4, 2016 · In addition, I installed a Z3M S54 driver's side engine mount, as it has a provision to attach and support the airbox. With an E46 wiring diagram, you can easily identify the wiring of each component and make sure that all connections are secure. Aug 21, 2013 · M50/52 & S50/52 harness diagram simplified Posts Latest Activity Photos Page of 2 Filter If you plan on swapping in an M52TU, M54 or S54 engine into your BMW E36, Condor Speed Shop's swap wiring harness adapter will provide easy installation! Dec 12, 2022 · Couldn't find a properly labeled engine wiring harness, so tried to make one myself. Does anybody know if it is the same as the S54 in terms of setup? I assume that although there are 2 cam sensors, we just wire in the single LH Exhaust sensor to trigger 2, an Feb 26, 2019 · Announcing the spring sale! For a limited time you can have superior quality at a price lower than the competition. I will post the wiring information here because I feel like community needs to know and to get some sense of wiring configuration for this swap for the first time. ) Z3M S54 Engine Harness 2. ) E46 M3 Ignition Harness 4. Going from OBD2 to OBD1 is also a possibility with this adapter. The DME on the E46 M3 is housed on the driver side, unlike the E36, so all the wiring is orientated in that direction. The 134 pin MS S54 Engine Control Module is manufactured by Siemens to BMW M spec-ifications. It details the wiring of all components in the E46 chassis, from the engine to the lights, and everything in between. May 7, 2025 · Discover the Engine BMW S54: specifications, reliability, common problems, and insights into its high-performance legacy. Here's an S54 adapter harness for an OBD2 E36 wired for the Z3M instrument cluster and some other options such as a connector for the electric fan coolant sensor. Wiring the E46 S54 2004 MSS54HP harness to the E30 late model chassis is not that hard. Harnesses include the OBD2 diagnostic port, electronic accelerator pedal wiring, and fuel pump relay wiring. Want to get your swap finished quicker? These adapters will save you a lot of headaches and hassle. Note you cannot flash the ECU with Below you will find a link to many schematics for 2003 to 2007. The MSS54 ECU harness will not be Sep 1, 2013 · When I put the s54 in, il remove the smg wiring from whatever lies in the engine harness, smg is not for me, personally I think it’s a joke, however, respect and each to there own. To assist you in reading these electrical diagrams, please have a look the wiring diagram symbol legend. Kassel Performance’s plug and play engine swap harness has been designed for a straightforward wiring solution for all E36 S54 swaps. Electrical diagrams, specifications and recommendations for scheduled maintenance are included, which makes these If you plan on swapping in an M52TU, M54 or S54 engine into your e30, our plug and play harness adapters are the easiest way to go. Jul 20, 2021 · Car: e46 m3 racecar MSS54 dme I am rewiring my car with the new AIM PDM 32 output. This is straight from S54 engine harness and is correct. An M52 was swapped and then finally an '04 E46 M3 drivetrain was sourced. Add to cart. This harness is specifically modified to integrate the S54 engine with the E30 chassis, and it includes connectors for all the necessary sensors, ignition components, and other electrical This video shows the removal of the engine wiring harness of a 2003 BMW E46 330i M54. FIREWALL CONNECTOR - HOOD AND TRAILER HARNESS FIREWALL CONNECTOR - CHASSIS HARNESS Aug 9, 2017 · Hi everyone, looking for some clarification on wiring the S54 fuel pump. These adapters ensure that your OBD2 engine functions correctly in your OBD1 chassis. Relays are provided, with the exception of the US S54 EKP module. This part isn't necessary at all, it's just a nice-to Jun 18, 2021 · In case anyone stumbles upon this later, no PINS need to be changed on X60003 harness. This wiring harness will be completely labeled. pdf), Text File (. The manifold is designed for maximum volume required for the S54 engine. Just be sure that you want this engine, 100%, Description Here is a 13 page dedication to understanding how to wire your custom N54 engine into your E30 chassis. These are complete engine wiring harnesses that have been modified to fit into the E30 chassis to allow for a simple plug-and-play solution. Jan 9, 2023 · S54 and ECU wire / electrical diagrams and schematics. These wiring kits use all new components. Besides the login I provided isn't just for wiring diagrams. Here, we cover the tools required, all years and models of applicability, and a dedicated one-line wiring diagram to cover the following configurations: BMW E30 1983-1992 BMW N54B30 2006-2013 covering E90/1/2/3, E60/1, E82/8 The last page is a Oct 22, 2019 · On the 6-cylinder S54 engine installed in BMW Z4 vehicles, the molded plastic intake manifold or intake plenum mounts between the six individual throttle bodies and the intake air housing. Apr 6, 2015 · How to wire a glovebox OBD2 port on an E30 + M52/S52 harness. Note: if the ECU has dual H-bridge outputs. Jun 29, 2019 · I’m swapping out my 520i Vanos harness for a 525i Vanos harness (since I already got the M50B25, but the previous owner got the Siemens MS40. The RealOEM diagram isn't very accurate, but you can make out what is going on. Preparatory tasks: · Remove intake air manifold. This document has almost NO frills. - The M3 cluser was pludged in for a laugh, see what happens. Find Cub Cadet Parts, Cub Cadet Blades, and Cub Cadet Belts and more. We do not include technical assistance for installing an S54 engine in your car with the purchase of this kit. Mar 23, 2012 · Hey guys, i have a 89 318i and I was wondering how hard it would be to swap in the S54B32 engine/tranny from a 05 BMW M3. I am trying to identify the pinout for these two connectors pictured below. Sep 8, 2014 · Physical Engine Swap To make life easier, disconnect your steering column from the steering rack, that gives the room you need to get the oil pan behind the rack. Nov 7, 2025 · Bmw M50 M52 S50 S52 in E30 Engine Swap Adapter Harness Wiring Conversion E34 E36 Description MS42 MS43 MS45 ME7. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. 1999 z3m. Apr 2, 2015 · My E30 S54 6 Speed Swap - Full Comprehensive Details! I have owned this car for the past 5 or 6 years. Originally had the s52. We now offer an A/C solution for the M52TU, M54, S54, M62, M62TU, and S62 swaps. This wiring harness adapter was developed to allow the installation/swap of an E46 or E39 engine into an E36, E30, E34 or Z3 chassis. r3vlimited. List goes on. Mar 21, 2020 · I used Redline Motorsport. Somewhere in the order of 100,000 S54 engines were made Feb 5, 2017 · Free Download Manual for BMW S54B32 Engine for E46 M3, M Roadster & Coupe - Components, Block, Pistons, Rings, Circuit, Pumps, Valves, Clutch & Exhaust System in Full PDF. Disconnect and cover battery negative lead. This is a brand new Genuine BMW S54 wiring harness, perfect for doing a clean and proper S54 swap on an E30, E36, or other classic BMW chassis. The manuals provide step-by-step instructions for diagnostics, disassembly, repair and assembly of the main components: engine, transmission, suspension, brake system, electrics and body. Regardless of the swap harness, if you want the dme to fit in the factory compartment on the passenger side, you will need to flip the main engine harness. The diagrams connect the engine harness, transmission harness, ABS, DME, alternator, starter, fuel pump, and other electrical systems 6 days ago · Complete Pinout Diagram and Wiring Schematic for the BMW DME MSS54 (S54B32 Engine). Sale prices (effective 26 February 2019): -$424. Now that I'm trying to figure out where all the plugs go, I'm finding that there don't appear to be many resources for this. There are always risks when tuning DMEs. These can be prewired into the harness adapter, or added on separately if you already have ENGINE HARNESS FIREWALL CONNECTOR ABS HARNESS FIREWALL CONNECTOR FUSE BLOCK FIREWALL CONNECTOR - HOOD AND TRAILER HARNESS FIREWALL CONNECTOR - ENGINE AND CHASSIS HARNESS ABS ELECTRONIC CONTROL UNIT ( OPTIONAL ) SCALE SCALE 1:8 S54 Engine Wiring Harness: The S54 engine wiring harness is utilized in E30 models that have been retrofitted with the S54 inline-six engine from the E46 M3. Also added the two similar diagrams May 7, 2021 · Using Jordan's M54 thread (https://www. For reference: X19527 is the E36 OBD2 port. Jan 9, 2013 · Contact me via private message if you need your MSS54 or MSS54HP programmed for a swap into any other chassis. Early Models will need to convert to this plug or create their main swap plug using 3rd party connectors such as TE's robust line. These kits are made with high temperature automotive grade wiring that resist Oct 2, 2015 · I removed the wiring harness from my engine without making much effort to mark where everything went, and to make matters slightly worse, I ended up buying a newer harness because mine looked like 200Kmi trash. Also Save on MTD Parts, and Troy Bilt parts and Kohler Engine Parts. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm E30 S54 SWAP WIRING - Free download as PDF File (. txt) or view presentation slides online. This is not necessary, but is recommended if you are seeking the most OEM install possible. com/board/form54-swap-guide) and E28 goodies S54 Swap (https://e28goodies. Not using the engine harness, just part of the body harness. Oct 20, 2017 · E46 M3 Engine Wiring DiagramUnderstanding the E46 M3 Engine Wiring Diagram to Diagnose Complex Electrical Issues The E46 M3 is considered a classic BMW model, offering plenty of power and performance with its signature S54 engine. · Remove fan cowl. I got kassel performance to make me an adapter harness, and * We do not include technical assistance for installing an S54 engine in your car. Aim datalogger, switches, circuit breakers, relays, etc. Unlock plug on throttle The Z3 M wiring harnesses for S54 are getting harder and harder to find, and when you do find one, you're harvesting one that has a couple decades of age and wear. I’m now using the Bosch harness, but I can’t figure out what all the plugs are plugged in to, so I think I need a wiring diagram. Somebody got that? Thanks! If you plan on swapping in an M52TU, M54 or S54 engine into your BMW E36, Condor Speed Shop's swap wiring harness adapter will provide easy installation! Mar 16, 2013 · Assuming you bought some good 99-04 dual vanos engine with complete harness and ecu with relay tray, and want to do a swap into your E30, you will also need X60004 harness plug that goes from the DME to chassis of donor car, the rest of the wiring is pretty much integrated with the engine. 2 MSS54/MSS54HP MSS52 Kit for BMW Engine Computer DME ECU Communication Compatible with: MS42, MS43, MS45, ME7. Just frustrating not having good diagrams of the engine harness. This adapter is intended to be used with a BMW chassis that does not have a main engine connector, such as the X20 or C101. Apr 24, 2020 · S54 Swap Wiring Harness for your E30 with Round C101 Plug. Basic wires Engine wiring harness BMW E30 2-doors BMW parts catalog ETK contains detailed May 8, 2018 · Hi Just wiring in an M54 BMW engine with a Wire in ECU. X6000 is the DME connector. No other engines or ECUs are supported at this time. Besides, using GM upfitter isn't practical and is mainly used for incomplete chassis vehicles. These kits are made with high temperature automotive grade wiring Sep 25, 2019 · -$424. Sep 6, 2023 · I don't understand what your trying to show. It is also incredibly time-consuming, at least for a single individual, like me. Find and save ideas about ha s54 wiring diagram on Pinterest. Jan 13, 2013 · Features for S54 & S62 adapter harnesses: -OEM metric wire that matches the factory wiring on your BMW -Electronic accelerator pedal connector -Coolant temperature sensor connector (for instrument cluster gauge) (except S62 for E36 & E31) -Fuel pump relay wiring -Switch for sport mode (may be omitted on request) 12 51 001 Replacing wiring harness section for engine (S54) Note: Switch off ignition. I intend to use a relay Nov 7, 2017 · OK so i have such issue with mostly all bmws when i wire Vanos solenoid to ECU does not matter is it single vanos, double vanos M54 or S54 there is same issue to not make things complicated lets talk about M52 vanos solenoid that has just switched +12v through relay and ground control when i use Oct 10, 2022 · BMW Engines BMW S54 Engine – Everything You Need To Know Few BMW engines resonate with enthusiasts as vibrantly as the S54 inline six. There is no vehicle specific engine information in the help file. I don't have the X6021 connector in my case, however, I've already cranked over the motor and it idled just fine without the X6021 connector or EKP module. Notice that with the bench flash harness, +12v is being applied to Pin 1, 7,8 on X60001. . zip files by model years to make it easier to find your exact diagram. Picked up an S54 last year to swap in. Just need to swap the DMTL plugs on X60004 plug to get charcoal canister to work. X6002 is the underhood 20pin ADS connector. Looking at the s54 engine harness, you have three connectors that went into the E box. The DMEs are different, the EWS system is different, the DSC system is different, and all software is different. We show how it is removed from the car and how it is properly routed fr Description M52TU/M54/S54 Adapter for Z3/Z3M M52TU must use MS42 DME M54 must use MS43 DME (MS45 option now available!) S54 must use MSS54 or MSS54HP DME These Plug-and-Play wiring solutions will make your engine conversion a breeze. ) Where does the plug I labeled "C6" in the "S54 Engine/Trans Harness" go? May 7, 2020 · In Today's Episode, we install the N54 into the freshly painted engine bay, so we must be extra careful not to mess anything up in there! We install steering components, fuel regulator, and other Kassel Performance’s plug and play engine swap harness has been designed for a straightforward wiring solution for all E30 S54 swaps. ) E46 M3 Engine / Tran Harness I have the following questions: 1. I also swapped the stock US E36 M3 passenger engine mount for a Euro M3 engine mount, because there's a nice heat shield protecting the vanos accumulator and AC compressor. The picture you posted isn't any different from the one you get using Alldata or shopkeypro. I acquired a brand new s54 z3m engine harness. These kits are made with high temperature automotive grade wiring that resist Sep 26, 2019 · Engine Harness Wiring Diagram for S54 ? By nitrofed7 in forum 2001 - 2006 M 3 (E46) Replies: 2 Last Post: 08-12-2007, 11:45 AM Jun 16, 2015 · LIFETIME warranty on workmanship with proof of purchase. Anyway, I poked around with a few things the last few hours and this is what has been discovered as FACT. black 8 pin connector Pin 1-black wire- starter run wire from ignition switch Jan 1, 2016 · We are constantly asked to provide wiring diagrams for non-M E46 S54 swaps. ACE Performance is an expert in E46 M3 S54 engine controls. This kit allows ECUs to be worked on the bench for easy and simple communication. Nov 25, 2019 · On 4/30/2020 at 5:37 PM, monstergarage62 said: Hi, i am using a325 e45 dual vanos engine and manual in a kit car,I have the full engine loom and throttle pedal loom plus ECU,what i don't have is the wiring diagram to connect ECU into main power source/loom,can anyone tell me how I make the ECU live Thanks What ECU are you using? Aug 19, 2021 · Having trouble getting this thing going. We use all NEW OEM BMW terminals and connectors unlike other competitors. The MZ3 S54 Engine harness is quite a bit longer than the E46 M3 engine harness and allows for mounting of the ECU in the glovebox of an E30 or E36. 9K views 2 replies 2 participants last post by Sapote Aug 26, 2023 Sapote Discussion starter Aug 10, 2007 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. 1 harness mounted, dunno why). Maintaining the E46 M3 requires a detailed understanding and knowledge of the various wiring diagrams and electrical systems inside the car. If I had the whole donor car, what would be my biggest issue? Also, would a M52 or S54 be better? Description M50/M52/S50/S52 Complete PNP Manual Engine Wiring for E30 These Plug-and-Play wiring solutions will make your engine conversion a breeze. Right off the bat, it's pretty expensive. Most of the info can be found at www. This document provides wiring diagrams for swapping an E30 S54 engine into an E46 chassis, using the E46 main harness and E46 manual transmission harness. See below. WebHome S54 E30 Swap MZ3 Z3M S54 Engine Wiring Harness The MZ3 S54 Engine harness is quite a bit longer than the E46 M3 engine harness and allows for mounting of the ECU in the glovebox of an E30 or E This is not necessary, but is recommended if you are seeking the most OEM install possible. This is the essential technical reference for diagnosing the complex electronics of the high-revving S54 engine (M3 E46, Z3, Z4 M). All of these engines (M52TU, M54, S54, M62, M62TU, S62) will need their specific Engine harness, DME, and matching transmission/o2 harness. Ecu nr: 7838663, 5WK9482 DME MS S70 Vin: WBSBT92000LD39398 Need compleate engine wiring diagram. The M50 based engines have really short exhaust headers which leave lots of room to maneuver around the column, but the S54 ones are much longer and really get in the way. Apr 17, 2016 · The primary engine harness requires no real modification and will be used as is. Aug 25, 2023 · S54 VANOS wiring diagrams Jump to Latest 2. 99 for M50, S50, M52, or S52 wiring adapter harness for E30 (add $50 for OBD2 port for M52 & S52) Note that options/add-ons and ECU flash prices will remain the same. It shows the key wire connections between the engine, transmission, and various sensors and components. MS43 harness as removed from an automatic E39 530i: Automatic wiring and other extra crap removed: What you're left with: Jan 30, 2023 · Engine Harness Wiring Diagram for S54 ? By nitrofed7 in forum 2001 - 2006 M 3 (E46) Replies: 2 Last Post: 08-12-2007, 11:45 AM Sep 28, 2015 · s54 swap at work? Yeah, it's been a long term project racecar. Jan 21, 2010 · When I put the s54 in, il remove the smg wiring from whatever lies in the engine harness, smg is not for me, personally I think it’s a joke, however, respect and each to there own. Description M52TU/M54/S54 Adapter for E36 M52TU must use MS42 DME M54 must use MS43 DME (MS45 option now available!) S54 must use MSS54 or MSS54HP DME These Plug-and-Play wiring solutions will make your engine conversion a breeze. These kits are made with high temperature automotive grade wiring that resist Kassel Performance’s plug and play engine swap harness has been designed for a straightforward wiring solution for all E36 S54 swaps. They will need the complete harness combination (main engine harness, transmission/o2 harness, and ignition coil harness). Jun 22, 2011 · I'm putting an S54 into my E36, I have the following wiring harnesses: 1. Installation Instructions included Extra wire for MPG Extra wire for Tachometer signal The BMW S54 E-Throttle is very power hungry, paralellwire all four H-bridge outputs is a recommendation to be able to handle the higher current. Started out as clean M20 car and I desired more power. I'm building the entire body harness from scratch. I’m finding the Bentley Guide wiring diagrams a little confusing in that the main wiring diagram section seems to show early clutch wiring with the two different switches on the clutch pedal (one wired to DME Detailed Repair and Maintenance Manuals for BMW 3-series E46 cars produced from 1998 to 2006. 99 for M52TU wiring adapter harness -$194. Sep 12, 2013 · My Cars 1998 M3/4/5 #1 actually goes to the coil pack harness, #22 is the SAP power connector S54 swap DME flashing - $100 S54 swap CAN interface board (for proper A/C & check engine light) - $275 e36 SAP sim/secondary air pump simulator: $75 - standard or $170 - plug & play e36 post-cat O2 sims: $115 shipped, plug & play 09-13-2013,12:22 PM #5 May 29, 2021 · I changed the location of the fuel pump relay on the E36 harness for S54, M54, M52TU, S62 so that it will mount in the OEM location clipped to the side of the fuse box. Mar 31, 2020 · Hi guys my name is Dean and I'm from South Africa i am busy with a S54 swap into my E30 coupe and i would like to know if any of you guys have a detailed pin out wiring diagram for the MSS54 DME that you would be willing to share If you plan on swapping in an M52TU, M54, or S54 engine into your e28, our plug andplay harness adapters are the easiest way to go. I've read that the S54 EKP module must be used because it's a pulsating signal, correct? I've also read some people not using the EKP module. The BMW S54 engine (found in E46 M3 cars from 2001-2006) is an excellent powerplant and great for engine swaps as well as forced induction applications. This is based off my experience with a couple of post-2000 EURO e46 m54 wiring harnesses. 99 for S54 or S62 wiring adapter harness -$399. Nov 23, 2023 · So I'm nearing the end of my S54 swap and wanted to note some things for anyone who is thinking about it, or is currently in the process of doing this swap. Mar 5, 2024 · 325i Icv Wiring Question Need Diagram R3vlimited Forums Wiring Harness Engine Trans Module For Bmw 3 E46 320i M54 Sedan Ece Spare Parts Sketched An M54 Intake Manifold Wiring Harness Guide Thing E46 Fanatics Forum Bimmerforums The Ultimate Bmw Forum E46 Non M S54 Wiring Modifcations Kassel Performance Feb 29, 2012 · I would stop using any MZ3 wiring diagram information. The secondary harness which connects to the chassis, automatic transmission and the rear O2 sensors will be heavily pruned. Dec 10, 2008 · Hi have a 2002 e46 need the colour code for wire from reverse gear switch to pdc control box select and sounder wires if possible have tried to get wire diagrams to no avail this is my first time on line fingers crossed Description M50/M52/S50/S52 Adapter for E36 OBD1/OBD2 to OBD2/OBD1 wiring adapter harness *Please specific your chassis model in the notes on your order (Ex: 318Ti) These Plug-and-Play wiring solutions will make your engine conversion a breeze. Oct 6, 2021 · I tried another amazon OBD reader that works on my other e46 and it will show a light as battery power but no DME connection. Description M52TU/M54/S54 Adapter for E34 M52TU must use MS42 DME M54 must use MS43 DME (MS45 option now available!) S54 must use MSS54 or MSS54HP DME These Plug-and-Play wiring solutions will make your engine conversion a breeze. com/insert-some-savage-plastic-here/) as my main references as well as going through the pinout schematic I put together a wiring diagram that I need some feedback on. We are not responsible for any damages that may be the result Look no further to find the electrical schematics or wiring diagram for your Vanguard commercial engine as well as alternator guides and resources. com Here is the install: 1989 BMW 325is: Old M52: Engine Preparation: Description M52TU/M54/S54 Adapter for E21 M52TU must use MS42 DME M54 must use MS43 DME (MS45 option now available!) S54 must use MSS54 or MSS54HP DME These Plug-and-Play wiring solutions will make your engine conversion a breeze. This makes it much easier to troubleshoot any issues that may arise Wiring Diagrams Chrysler Corporation wiring diagrams from 1955 to 1975 are bundled in . Harnesses include the OBD2diagnostic port, electronic accelerator pedal wiring, and fuel pump relay wiring. Cluster coolant temperature wiring (Except for M52TU, M54, S54 chassis) A/C wiring (Except for M52TU, M54, S54 chassis) Working OBD2 diagnostic port I've decided to offer ECU flashes without the purchase of a harness for the S54, S62, and M54 with an MSS54, MSS54HP, MSS52, or MS43 ECU. 2, MSS54/MSS54HP, MSS52 Downloadable software links will be provided. The ECM is the SKE (standard shell construction) housing and uses 5 modular connectors. Or converting from the M52TU, M54, S54, etc. Follow instructions for disconnecting and connecting battery. It's can be used for diagnostic procedures, harness routing, fuel systems diag, R&R. 99 for M50, S50, M52, or S52 wiring adapter harness for E30 (add $50 for OBD2 May 27, 2023 · I I’m swapping an S54 and manual transmission from a 2002 M3 into a 2002 325i Touring. The following chart was created to assist in any wiring changes necessary for S54 swaps in to MS42, MS43 and MS45 vehicles. This document provides wiring diagrams and instructions for swapping an E30 S54 engine into an E46 chassis, using the E46 main harness and a manual transmission E46 harness. Due to the wide range of wiring schematics for the array of BMW models this swap can be installed in, you will need a wiring diagram for your car - we do not include wiring instructions. The donor car was an 05 smg, I have both the engine harness and the body harness. 99 for M54, M62TU, or M62 (9/97+) wiring adapter harness -$374. doing some searching on this forum I found a wiring diagram for a bench flash harness for the MSS54. All crimp terminals and connectors are new. O2 sensors, reverse light, etc. Alldata, Bentley manual, and Mitchel Ondemand have provided some pretty conflicting diagrams. X6031 is the smaller connector next to X20 and X69 on a stock OBD2 M52/S52 harness. ) Kassel Performance E36/S54 Adapter 3. S54Swap. Work step Note: Unlock plug on idle-speed control valve and disconnect. Understanding the E46 M3 Jan 23, 2025 · Explore common BMW S54 engine problems, their symptoms, causes, and effective solutions for optimal performance and reliability. If you plan on swapping in an M52TU, M54 or S54 engine into your BMW chassis, our harness adapters are the easiest way to go. iaicjdb dbra pxh xnbwtf fms nbxp tafzyda nvnzm hzlpdvt xrek umhr akehm crtzheh ntaxg qin