Here are the megasquirt updates, you can use the version 2.2 or the version 3 boasrd but you definitely want to run MSII. MSI will work but there aren't as many features. mind you i've setup plenty of MSI boards and they all run fine and very successfully.


24 MHz HCS12 processor (C64 version),
Fuel control to 1 µsec (100 times more resolution than MegaSquirt),
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 (this requires a few jumpers to be added on the MegaSquirt PCB to connect the socket jumpers to the DB37 connector),
Ford PWM idle valve support,
Built-in rev limiter, either 'fuel cut' or 'spark retard',
All tables are now 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,
115,200 baud serial interface with MegaTune2.25+,
CANbus networking for 'inter-board' communications with add-on modules like transmission controllers, sequential injection drivers, etc.,
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.)