What is a TFI module on Bronco?
What is a TFI module on Bronco? TFI is Thick Film Integrated. It is mounted directly to the distributor, or integrated. The "thick film" is between the module and the dizzy, to isolate the module from vibrations transmitted through the dizzy shaft. How does a TFI module work? What Does a TFI Do? the purpose of a TFI module is to control the spark output of the ignition system. A signal is sent from the TFI to the ECU, where the ECU processes the received signal and correspondingly outputs the correct spark control for engine timing (advance/retard). What does the...