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AEM EMS4 Universal Standalone ECU Series 2 Engine Management

Starting at: $759.00

Part Number: 30-6905
Application: AEM EMS4 Universal Standalone ECU (4cyl)

This is AEM's new Universal Standalone ECU designed for 4cyl engines built off of the same frame work as the popular Series2 Plug n Play EMS computers. It is a complete standalone ecu that will completely run the engine, ignition, boost control, fuel control, knock control, idle, nitrous control, and everything else. like the series2 plug n play ecu's AEM sent us a pre-release EMS4 to familiarize ourselves with before they are made public so we can offer experienced tech support to our customers once they hit the market.

We made a little youtube video that outlines the capabilities of the computer and lets you know what you will be getting yourself into if you decide to go with this computer.




EMS-4 KEY FEATURES 


4 Saturated Injector Drivers
4 Coil Triggers
8 General Purpose Inputs/Outputs
Mag or Hall cam and crank inputs
O2 Input
Knock Input
8 MB Internal Data Logger
VSS Hall Input
CAN Data Stream
USB Comms Port
Utilizes AEMTuner interface software
System is fully enabled and unlocked - Never pay for upgrades
Context sensitive help eases tuning process
Maps can be password protected by the tuner to prevent unauthorized usage sharing


Heres a text outline in case you are at work and cant click the video link

1.) The computer is Universal, meaning it can run any 4cyl engine including a car engine or a motorcycle engine, or a snow mobile, or a wave runner, jet ski, etc.

2.) Since its universal, you will need to wire it into your harness. You have 3 options here:
a.) There is a "plug n pin" harness that comes with a connector and pins. You can either cut your factory ecu connector off and pin your factory harness wires into this connector. Or you can buy an ecu extension jumper harness that normally goes between your factory harness connector and your factory ecu, and just cut the ecu connector off and pin the jumper harness wires into the AEM connector, allowing you to remove the entire system easily if you want to go back to stock ecu. (this way doesnt molest your stock harness)
b.) There is also a 96" Long Universal Full Wiring Harness complete with Fuse Block and Main Relay if you want to do a complete custom install that will totally replace your factory engine harness. This could be good for you guys who want to do a wire tuck, or maybe your factory harness is just in poor condition and you want to start fresh...
c.) The last option might be the easiest. We will be offering plug and play adapter harnesses that connect your factory wiring harness to the AEM EMS4 allowing you to effortlessly install the ecu into your car in minutes. We will also include base maps for you to start and run the engine well enough to get you to your local tuner.

3.) This ecu is based off the same framework as the popular AEM Series2 Plug n Play ECU's so it uses the same AEM Tuner software (and the newest version is very easy to work with)

4.) This ECU controls 4 Ignition Outputs and 4 Fuel Outputs, so it can only run a 4 cylinder, but it also has User Configurable PWM Outputs that can be used for:
Boost Control
Knock Control
Idle Control
Nitrous Control (Also works with Water/Meth Injection)

5.) It has 8 User configurable inputs or outputs

6.) It recognizes both MAG and HALL cam and crank sensors so you wont have any problems using one of these on these cars.

7.) It has 8mb of Internal Logging so you can data log internally without having a laptop hooked up, and review it later on your computer.

8.) All of the harness options come with pre-installed USB Communication ports, and CAN ports for data communication. That means you wont need to use an oldschool serial port laptop to tune the ecu.

9.) The case of the EMS4 is small, lightweight, compact, weatherproof, etc. 

What else you'll need: 
Since this ECU is universal, it does not come with a harness. You will need to select which harness you want to use. Either the Plug and Pin Connector that you will Wire yourself, or the Complete Universal Wiring Harness that will replace your factory engine harness. Here are some options:



AEM Plug and Pin Connector

This plug and pin connector comes with an empty connector and enough pins to populate the connector. If you go this route, it would be your job to re-pin the wires in your factory engine harness into this aem connector, basically replacing your factory ECU connector with the AEM one.


AEM ECU Extension Harness

This is purely just an extension harness that goes between your factory ECU, and your Factory Engine Harness. It is nothing special, just a bridge. Buying one of these would allow you to make your own "plug and play" harness by cutting the ECU connector off of THIS harness and pinning these wires into your AEM EMS4 connector (shown above) as opposed to cutting up your stock harness. Essentially you would combine the Plug and Pin Connector shown above, with this harness to make 1 link between your factory harness and your EMS4.
AEM 96" Complete Universal Wiring Harness

This is a completely Universal Wiring Harness that would completely replace your factory engine harness. This would be perfect for you guys that want to do a wire tuck, or just want to replace your old weathered engine harness with a new premium grade wiring harness complete with fuse block and main relay.

  • Model: 30-6905
  • Shipping Weight: 5lbs
  • Manufactured by: AEM

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