DIYAutoTune Megasquirt 2 Standalone EMS Fuel Spark Data MS2

• Assembled with the latest surface mount PCB3.57 in a brushed silver case, with MS2 Extra firmware 
• MegaSquirt has been installed on thousands of engines from purpose built race-cars to restored classics.  

Features:

• Cam/ crank wheel decoding for a stack of different ignition system trigger wheels,
• Coil on plug/wasted spark ignition,
• 16×16 Volumetric Efficiency (VE) and 12 x 12 Ignition Tables,
• Boost control
• Shift Light control
• Water Injection control
• Knock Sensor Input
• Staged Injection
• 2 Stage Nitrous Control 

Features / Benefits of all MegaSquirt EFI Systems:

• Onboard MAP sensor for NA or boosted engines up to 21psi!
  
• Speed density or Alpha-N.
  
• Use any injector – High or Low impedance.
  
• Compatible with output from narrowband sensors and wideband O2 systems.
  
• Log data on your laptop for later analysis.
  
• Tuning software is free for download and regularly updated with new features.
  
• Source code and hardware information is available online allowing you to customize things beyond the massive feature set already available if you choose.
  
• Professionally Machined Brushed Aluminum Case with Endplates. Flanged for easy mounting.
  
• Supports use of original MS tach input, ignition coil triggering, VR, Hall and Optical sensor triggering.
  

MS2 Extra MegaSquirt 2 processor-specific features:

• 24 MHz HCS12 processor
  
• Fuel control to 1 µsec (100 times more resolution than MegaSquirt-I)
• Ignition control (full spark timing advance control, dwell control, etc) for one coil/distributor (7 pin HEI for example) and Ford’s EDIS systems
  
• On-board stepper motor driver for IAC stepper control (jumpers installed for this by default)
  
• Ford PWM idle valve firmware support
  
• Built-in rev limiter, either ‘fuel cut’ or ‘spark retard’
• All tables are 12×12 in size
  
• WBO2 AFR target table (in AFR units)
  
• Independent dual-tables for VE and AFR target
  
• EGO feedback in wide-band mode is proportional to the difference between the measured AFR and the target AFR, the bigger the difference, the bigger the feedback step
  
• Spark advance table can have different rpm and kpa bins than VE and AFR tables
  
• CANbus networking
  
• Barometric correction amount and direction configurable in software, and provisions for:
  
• barometric correction based on initial MAP reading 
  
• independent 2nd barometric MAP sensor for continuous real-time baro correction or no baro correction.
  
• TPS values for open loop and flood clear mode are user configurable
  
• MAP based open loop can be set as well as TPS
  
• Both TPS and MAP based accel enrichment is built into the code, you can configure the ratio of each
  
• Blended Alpha-N and speed density is an option
  
• 2 spare I/O lines for custom controls. (This is in addition to 4 lines for Idle stepper control if you don’t need this, or the Fast idle solenoid then becomes a spare if you do use a stepper motor.)
  

Features specific to the latest PCB Version 3.57 Surface Mount PCB:

• 90% of components converted to surface mount. This standardizes the part numbers used, as well as the assembly process, resulting in consistently high quality.
  
• All standard ignition input settings are now easily set by jumper shunts, no need to bust out your soldering iron to change your base hardware ignition configuration anymore!
  
• Pulse-Width Modulated (PWM) Idle Valves are now natively supported by the PCBv3.57 hardware without the need for modification. The circuitry on the PCBv3.57 will control a standard on/off fast idle valve, or a 2/3 wire PWM Idle valve!
  
• MS2 Extra code allows using the PWM idle valve output for open or closed loop boost control as well!
  
• Enhanced I/O Capabilities: DB15 Added for bringing signals into/out of the ECU Common signal pickup points (IE ‘top of the LEDs, etc’) are brought out to easily accessible solder pads
  
• LEDs are surface mounted.
• Now built using the MS3 enclosure, which will help facilitate potential future upgrades from MS2 to MS3 without extra cost.  The finish is brushed silver.
• Megasquirt is for advanced engine tuners.  Happy to answer any questions!