AEM EMS-4 Standalone Engine Management System

SKU: 30-6905

AEM EMS-4 Standalone Engine Management System. AEM EMS-4 is full programmable standalone engine management system for producing maximum power and reliability. Combine your AEM EMS-4 with a Boomslang Plug N Play Harness to avoid wire splicing

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NOTE: This product has the following shipping restriction(s):

CARB Restricted Product, cannot be shipped to California

Was: $844.38

Sale: $607.95

Save: 28%

Save: $236.43

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Description

AEM EMS-4 Standalone Engine Management System

Scion Models

30-6905

AEM’s EMS-4 Universal Standalone Programmable Engine Management System is the ideal standalone Engine Management System for modified Powersports and four-cylinder race car applications. The EMS-4 was created using AEM's powerful Series 2 hardware and includes all of its advanced features without the unneeded ancillary components.

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 (part # 30-2840).

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

WARNING!
AEM’s EMS-4 Universal Programmable Engine Management System is legal in California only for racing vehicles which may never be used upon a highway.

Use this system with EXTREME caution! The AEM EMS System allows for total flexibility in engine tuning, however misuse of this product can lead to major engine/vehicle damage. If you are not well versed in engine dynamics and the tuning of management systems or are not PC literate, please do not attempt installation/tuning of this product. For technical assistance, please visit our forum or visit our dealer locator for a Factory Trained tuner near you. AEM holds no responsibility for any engine damage that results from the misuse of this product!