Two types of diagnostics are present in the EEC, On-Demand and Continuous. The EEC objectives include calculating required command values and outputting the required voltages to command, in real time, the spark timing, the EGR valve position, and for controlling the on/off duty cycle of the fuel injectors. Many thanks to Authors such as Tom Cloud, Mike Wesley who have technical articles on the net, Charles Probst, who authored the 'Official Ford Mustang 5.0 Technical Reference & Performance Handbook from which information was derived, and Mustang Forum members such as Rick Wagner, who used a EEC-Tuner âĪnd TransmarrowBird Eater (Dave) for sending me his TwEECer â I don’t know that I can improve on the explanation of this information by pulling it into one document, but I am willing to try for the benefit of fellow Stangers. I have spent significant amount of time searching for information regarding the EEC and I have come across readily available reliable sources of information.

There are a lot of questions regarding the way the Mustang EEC IV works.