E36 & Z3 MS3Pro Plug-N-Play Standalone Engine Management System (M52 & S52) - SND

With the MS3Pro PNP EMS, we've simply taken all of the wiring homework and labor out of the project for you. Allows you to tune your BMW with a laptop to handle any mods you can throw at the OBD2 M52 and S52! We provide you with a solid base map to tune from to make your installation and tuning process go incredibly smoothly whether you're a super technical computer-geek or just a gear-head. Now you've got no more excuses... Replace your “ Siemens MS41.x” DME with a tunable racing ECU to handle any mods you can throw at these engines!

Easy to Use and Install!    

• Fully Plug and Play Installation – No wiring required for basic functionality.
• The ONLY aftermarket M52 ECU on the market that supports the stock BMW camshaft position sensor – NO Hall sensor retrofit needed!!!
  
• Maintains functionality of the factory ACS+T traction control system
  
• Maintains functionality of the factory Econometer/MPG gauge on the dashboard
  
• Base map is pre-loaded to help your engine start on the first turn of the key
  
• Real time tuning and data logging with a laptop connection
  
• 8 GB internal data logging with built in SD card
  
• Supports most aftermarket wideband sensors
  

Fully Tunable Engine Control!     

• 16×16 Fuel Tables allow high resolution tuning
• 16×16 Ignition Tables
  
• Multiple Acceleration enrichment strategies
  
• Closed Loop Idle Speed Control
  
• Air Conditioner Control
  
• 6 sequential fuel injector channels with individual trim tables
  
• Onboard high impedance injector drivers
  
• Allows removal of stock MAF sensor
  
• VANOS control
  

Advanced Feature Set (Included!)

• 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
• Multiple traction control strategies
  
• Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  
• Time based timing / boost increase after launch
  
• Real time barometric correction
  
• Internal 4-bar MAP sensor reads up to 44PSI of boost
  
• Overboost protection
  
• Closed loop boost control (Requires DIYAutoTune.com EBC solenoid kit)
  
• CO2 based boost control
  
• Set boost by RPM and throttle, ground speed, or gear
  
• Rally style anti lag
  
• Water injection control – on/off or variable
  
• Knock sensor input with adjustable sensitivity, crank angle windowing, and more
  
• Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  
• Input for flex fuel sensor – switch between E85 and gasoline on the fly!
  
• CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors…..the possibilities are limitless!
  

What you get in the box:

• MS3Pro Plug and Play for 1996-1999 BMW M3 E36 ECU
• RS232 tuning cable
  
• 20 Pin Options Connector
  
• Tuning Software and Documentation on a card with a QR code with two base maps included for stock M52 & S52
• 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  
• ECU mounting brackets
  
• Registered version of TunerStudio and MegaLog viewer included
  

Fits the following applications. Confirmed for US market vehicles:

• 1998-1999 BMW E36 323is/323ic with M52 motor and manual transmission
• 1996-1999 BMW E36 328i with M52 motor and manual transmission
• 1996-1999 BMW E36 M3 with S52 motor and manual transmission
• 1995-1998 BMW E39 528i with M52 motor and manual transmission
• 1995-1998 BMW E38 728i with M52 motor and manual transmission
• 1997-1998 BMW Z3 2.8i with M52 motor and manual transmission (Not compatible with the later M52TU motor)
• 1997-2000 BMW Z3M with S52 motor and manual transmission

Suggested Add-ons:

• If you want the ECU to control boost, you will need a boost solenoid.
• We always recommend purchasing a new IAT sensor.
• We also recommend purchasing a high-quality wideband sensor.

Compatibility Notes:

• Direct replacement for Siemens MS41.x DME
• Not compatible with M52TU DME Siemens MS42
• Not compatible with European market M3.
• South African market 1997-2000 Land Rover Defender with M52 likely to work, but compatibility is not confirmed at this point.