All the coils are placed in a single module called a coilpack.
Ford used the EDIS module on a number of vehicles from 1988 to 199X.
But was incorporated into the EEC-V ECU, so there is no external module.
The EDIS-8 module is used on the following vehicles equipped with the 4.6-liter V-8 Ford Modular engine between 1990 and 1997: The EDIS-8 Module was also used in Some later 5.0L Ford Explorers until around 2002 The EDIS system's relative simplicity, in particular the fact it does not require a cam sensor, makes it a popular choice for custom car builders and classic car owners looking to retrofit a modern ignition system to their vehicle.
The crankshaft-mounted trigger wheel, VR sensor, EDIS Module and an ignition control computer can all be easily fitted to most older engines that originally used a traditional distributor for ignition.