AEM EMS-4 Universal Standalone Engine Management System

WHY YOU WANT THIS
If you have modified your four-cylinder Powersports application beyond the factory ECU’s ability to control engine operation, or have a 4-cylinder race vehicle that does not require some of the advanced hardware features of an AEM Series 2 Plug & Play System, AEM’s EMS-4 provides complete engine control for the maximum power and reliability.

THE HARDWARE
AEM’s EMS-4 provides complete engine control for small engines with up to 4 cylinders. The unit includes a 36-pin connetor that is specifically designed to operate in harsh environments. It is completely sealed and weather/shock proof, allowing it to be mounted anywhere. The EMS-4 works with MAG or HALL crank inputs and can directly drive smart coils or an external ignitor such as AEM’s 4-Channel Coil Driver

Weather/Shock Proof Enclosure 36-Pin Connector specifically designed to operate in harsh environments
Injector/ Coil Outputs
Injector Outputs (8 ohm minimum, High Impedance Only)     4 Saturated
Coil Triggers 0-5V Falling Edge Fire (Do not connect to coil primary)     4
Timing Sensor Inputs
VR (Mag) Cam Input     1
VR (Mag) Crank Input     1
Hall VSS Input     1
Hall Crank Input     1
Hall Cam Input     1
Inputs/Outputs
GPIO - 1.5A Low Side Output / 0-5V Analog Input / Switch Input     4
GPIO - 1.5A Low Side Output / 0-5V Analog Input / PWM Output     4
O2 Sensor Input 0-5V Analog     1
Knock Sensor Input Programmable     1
Throttle Position Sensor Input 0-5V     1
Manifold Pressure Sensor Input 0-5V     1
Coolant Temperature Sensor Input 0-5V     1
Inlet Air Temperature Sensor Input 0-5V     1
Sensor Ground     1
5 Volt Reference     1
Communication
USB comms     Yes
Communication cables included     Yes
Fully enabled editing/logging software included     Yes
CAN bus equipped with Programmable Send / Receive     Yes
CAN data stream output     32 ch
DATA Acquisition
Internal data logging     8 MB
Maximum internal logging rate (per channel)     125 Hz
PC logging     Yes
Data analysis using AEMLog     Yes
Functions and Features
User adjustable knock sensor center frequency     Yes
Individual cylinder ignition trims     Yes
Individual cylinder fuel trims     Yes
High/Low speed fuel pump support     Yes
All channels/maps/tuning options unlocked     Yes
Boost control     Yes
Groundspeed based boost target     Yes
Nitrous injection     Yes
Staged injection     Yes
Ground speed limiting     Yes
Rate of Acceleration Control     Yes
Overrun boost enhancement (anti-lag)     Yes
Gear change ignition cut (shift-without-lift)     Yes
Password protected calibrations     Yes
Fuel & Ignition rev limiters     Yes
"In cockpit" global fuel trim capability     Yes
Gear dependent shift light     Yes
Evap/Purge function     Yes
Software definable "virtual" switch inputs     Yes
EGT Based fuel trims (additional hardware needed)     Yes
Maximum boost limit     None
Physical Dimensions
Length     120 mm
Width     114 mm
Height     35 mm
Finish     Black