MicroSquirt ECU Engine Management System

Description

MicroSquirt ECU is our entry-level, fully assembled ECU with varied applications targeting power sport and single cylinder all the way up to 8 cylinders with up to 2 fuel and 4 spark outputs. Over 40 different ignition modes are supported from mainstream applications like GM LS1, Ford Zetec, Bosch Motronic, and Chrysler Gen III Hemis to unusual modes like Renix Jeep and the Suzuki Swift GTI.
MicroSquirt ECU hardware features
2 high impedance injector outputs – max peak current 4.5 amps
2 dedicated spark outputs
2 general purpose on/off outputs – can be repurposed as spark outputs
1 PWM IAC output – can be repurposed as general purpose output
1 dedicated fuel pump output
2 variable reluctor conditioned inputs
1 optoisolated RPM input
1 flex fuel or general purpose switched input
7 analog inputs
MicroSquirt ECU software features
Supports speed density, alpha-N (TPS based), or MAF based fuel and spark tables
0.66 microsecond injector pulse width resolution
Allows blending multiple load types, including specialized mode for independent throttle bodies
Supports a wide variety of OEM cam and crank position sensors
Accelerator pump or model based acceleration enrichment
Closed or open loop idle speed and boost control
On/off nitrous control
Wankel rotary support: 2 rotor engines with separate leading and trailing spark tables
Staged injection
Table switching
16 x 16 fuel tables
12 x 12 spark tables
2 step rev limiter (launch control) with no-lift shifting
Wideband AFR target table
Flex fuel sensor input
Real time barometric correction (external sensor required)
Sequential shift cut and air shifter control