Manuals
EZLYNK

EZ LYNK Auto Agent 2 & 3 — Install & Tuning

~10 min

EZ LYNK's Auto Agent 2 & 3 are universal vehicle communication devices that let you diagnose, monitor, and program your truck using cloud-based technology — so you and your technician can communicate and transmit data in real time. Your EZ LYNK tuner ships preloaded with your custom tune. Need help, or have a Lifetime Support Pack? Email info@empirediesels.com.

READ BEFORE FLASHING. Put a REAL high-quality battery charger on the truck at 12V / 15A and keep voltage above 12.5V for the entire flash — never use a jump box. If voltage drops below 12.5V, ECM damage can occur; do not flash under 12.5V. Use fresh batteries (under ~12 months old). Have strong cell service, a phone battery above 75%, and all background apps closed. Do not touch your phone during the flash.

Steps

  1. 1

    Use fresh batteries

    Make sure your batteries are newer — under about 12 months old. Since 2020, the average battery only holds proper tuning voltage for around a year, so older batteries may not sustain the voltage a flash needs.

  2. 2

    Unplug aftermarket accessories

    Unplug any aftermarket accessories and pull their fuses before you begin.

  3. 3

    Put a battery charger on the truck

    Connect a real, high-quality battery charger set to 12V and 15A to keep voltage above 12.5V while flashing. Do not use a jump box. If volts drop below 12.5V, ECM damage can occur — do not flash if under 12.5V.

  4. 4

    Tune before removing any parts

    Always tune the truck before removing parts — don't remove anything until tuning is complete. Be gentle with every hardware and cable connection: don't force anything, make sure each plug is fully seated, and double-check everything before programming.

  5. 5

    Prep your phone

    Charge your phone above 75%, confirm strong cell data, and close all background apps (restarting the phone helps). Leave the phone alone during the flash so it has uninterrupted data.

  6. 6

    Download & install the AutoAgent app

    The AutoAgent app runs on most smart devices (iOS 8+ or Android 5+). Download it from the App Store (iOS) or Google Play (Android).

  7. 7

    Create an account

    In the AutoAgent app, choose 'Create an account' and verify your email. If you're a shop or mechanic doing this for a customer, create the account for the end-user (or use the account they already have).

  8. 8

    Key to the 'Run' position

    Turn the key all the way over without starting the engine to boot the engine computer so the AutoAgent can communicate with it. On push-to-start vehicles, press Start twice.

  9. 9

    Plug the AutoAgent into the OBD-II port

    With the key in 'Run', plug the AutoAgent into the OBD-II port. A blue light on the device means it booted correctly.

  10. 10

    Connect your phone to the AutoAgent

    In your phone's Wi-Fi settings, select the 'EZ LYNK_####' network. A check mark appears when connected. The Auto Agent 3 can also connect via Bluetooth.

  11. 11

    Open the AutoAgent app

    Once connected, return to the AutoAgent app — you should now see your vehicle gauges.

  12. 12

    Lynk your vehicle

    Vehicles purchased from Empire Diesels (or an authorized dealer) are AutoLynked. Do NOT type in a tech email manually — wait for the tech email to pop up, then select it. If your phone has cell data, a prompt to lynk the vehicle appears; follow it. No cell data? Connect to Wi-Fi and reopen the app to finish lynking.

  13. 13

    Program (flash) your vehicle

    Go to Vehicle > ECU Profiles to see the tunes available to you. Tap to download your desired ECU profile, then tap 'Install' to flash — the app guides you through it. On a device without cell data, switch to Wi-Fi to download the profile, then back to the EZ LYNK network to install it.