The TwEECer -- EEC-IV user programmable module

Downloads, Links and other EEC related info

Software Updates

If you are a new TwEECer owner, you need to download all three items below. Follow the instructions in the Install Guide and you will be TwEECing in no time.

Install Guide -- Details regarding the install process
CE135 -- CalEdit & CalCon (06/17/2020)
Tune Form -- STKR Custom Calibration Form
Driver 2014 -- Drivers REQUIRED for Windows XP and TwEECer units purchased prior to 05/05/2018

Recommended Reading

How to understand, Service and Modify

Ford Fuel Injection & Electronic Engine Control

By Charles O. Probst, SAE

ISBN 0-8376-0301-3

This is an excellent book relating to many aspects of the 87-93 5.0L Fox Mustang (MAF & Speed Density). It does not discuss specific tuning techniques or other TwEECer aspects, but does delve into the technical side of sensor signals, trouble shooting, reading DTC (Diagnostic Trouble Codes). It is a great all around reference.

Engine Management: Advanced Tuning
By Greg Banish
ISBN-10: 1932494421
ISBN-13: 978-1932494426

The book contains detailed equations, graphs, and illustrations. Also included are valuable and practical examples, including real-world examples based upon the author's experience that will help more advanced readers apply this new information to situations that are commonly seen during calibration.