AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 58)

Page 58 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
the output to activate. To control the output using only the pin conditions, select Ignore Switch
Input and set the activation conditions as needed. In the example above the following
conditions must be true for the output to turn on:

RPM greater than 0

Engine Load greater than -14.40 psig

Throttle Position greater than 0%

Road Speed (Vehicle Speed) greater than 0

Coolant Temperature greater than -198 deg F
Configure Telemetry Dialog – Allows the user to select custom settings for serial or CAN
telemetry output. Note that the EMS-4 systems do not support serial comms or telemetry.
EMS-4 systems communicate with the PC using USB only.
Telemetry Setup Menu Items
Calibration Compare Tool – Will compare two calibrations and allow the user to copy settings
from one to the other.
Compare With Calibration Menu Item
The calibration compare tool will compare the currently loaded calibration with a second one
chosen by the user. With a calibration opened in AEM Tuner, the first step is to select the
second calibration.