PSI Software Resource Center
PSI
Resource Center
PSI Software Resource Center

Fast access to

Centralized tools, downloads, passwords, and training resources for field technicians.

Software Downloads
Encrypted Passwords
Plot File Templates
Training Resources

Software Downloads

cloud_download
Latest

4G Display v684C

Standard diagnostic package.

Download Bulletin
Note: Older Weichai WP Series engines may require legacy 4G v608A. Get Legacy v608A →
developer_board

GCP Display

GCP Series diagnostic tool.

Download
settings

PSI Display

Legacy display software bundle.

Download
memory

LCI Display

LCI Series software.

Download
usb

ECOM Driver

Required interface driver.

Download

Encrypted Passwords

4G Display (16-digit)
1BZI-2TOY-EKHF-CHCK
4G Display (26-digit)
DXNGNCZMKTKNE-FMO1N5JEHEBIU
GCP Display
NQUX-VK2M-FF3K-XDCJ
PSI Display
NVWW-ZKMN-NVWK-TDIN
Weichai 4G (16-digit)
RBK2-N4KI-JXDO-KDBF
Weichai 4G (26-digit)
AI4DGYWO4LCRR-5GCBJQNKGLK0M

Plot File Templates

4G PSI HD Plot Template v2.2 chevron_right 4G Industrial Plot Template v2.2 chevron_right Loading & Recording Plots chevron_right PSIKO25014 Plot File Recording Best Practice chevron_right

Training Resources

How to install 4G Display play_circle How to download ECM Details play_circle How to download ECM Histogram play_circle Connecting to dual ECMs chevron_right

Knowledge Info

4G Display software update v684C chevron_right

Field Programmer

Field Programmer v4.4.1 download Field Programmer Training Video play_circle

Diagnostic Software Support

Frequently Asked Questions

You will need an ECOM or ECOM 2 Cable

ECOM Cable part number is z101554

Purchase the ECOM cable from our parts team at parts@psiengines.com or 888-331-5769

Yes, you will need a driver for the diagnostic software.  Luckly, the “ECOM Driver” is contained within the software download .zip folders linked above.  Take a look!

Take a look at the video above for step by step guidance on the installation.

This can occur for several reasons.   See below for the most likely causes.

  1. You are using the incorrect software for the ECM hardware.  Check the white label on the ECM, does it say GCP or 4G?
  2. You are using the incorrect password.
  3. You did not insall the ECOM Driver.
  4. Your engine ECM is not powered  up.

Yes, we offer multiple types of training solutions.  Take a look at our training page as a starting point!