# Ford EDIS > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Ford_EDIS > Markdown URL: https://mediated.wiki/source/Ford_EDIS.md > Source: https://en.wikipedia.org/wiki/Ford_EDIS > Source revision: 1318055671 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) The **Ford EDIS** or **Electronic Distributorless Ignition System** is a computer-controlled [ignition system](/source/Ignition_system) developed by [Ford](/source/Ford_Motor_Company) that uses an [ignition coil](/source/Ignition_coil) for each pair of cylinders ([wasted spark](/source/Wasted_spark)). All the coils are placed in a single module called a coilpack. ## Vehicles with EDIS Ford used the EDIS module on a number of vehicles from 1988 to 199X. ## EDIS-4 The EDIS-4 module is used on the following vehicles equipped with the [Ford HCS engine](/source/Ford_Kent_engine#HCS), and the 1.9-liter [straight-4](/source/Straight-4) [Ford CVH engine](/source/Ford_CVH_engine), between 1988 and 1993: - [Ford Escort](/source/Ford_Escort_(North_America)) / [Mercury Tracer](/source/Mercury_Tracer) - [Ford Fiesta](/source/Ford_Fiesta) (Europe) - [Ford Escort](/source/Ford_Escort_(Europe)) (Europe) - [Ford Sierra](/source/Ford_Sierra) (Europe) - [Ford Scorpio](/source/Ford_Scorpio) (Europe) - [Ford Mondeo](/source/Ford_Mondeo) (Europe) This system was also used on the 1995–2001 4-cylinder Ford Rangers and 1995–2001 Mazda B2300, B2500. But was incorporated into the EEC-V ECU, so there is no external module. ## EDIS-6 The EDIS-6 module is used on the following vehicles equipped with the 4.0L [Ford Cologne V6 engine](/source/Ford_Cologne_V6_engine) and 3.8L [Ford Essex V6 engine](/source/Ford_Essex_V6_engine_(Canadian)) between 1990 and 1997: - [Ford Ranger](/source/Ford_Ranger) / [Mazda B-Series](/source/Mazda_B-Series) - [Ford Explorer](/source/Ford_Explorer) / [Mazda Navajo](/source/Mazda_Navajo) - [Ford Aerostar](/source/Ford_Aerostar) - [Ford Mustang](/source/Ford_Mustang) (3.8L V6) - [Ford Thunderbird Supercoupe](/source/Ford_Thunderbird_Super_Coupe) - [Ford Taurus SHO V6](/source/Ford_SHO_V6_engine) (1989–1995) - [Ford Windstar](/source/Ford_Windstar) - [Ford Mondeo](/source/Ford_Mondeo) The European [Ford Scorpio 2.9 V6 24V Cosworth](/source/Ford_Scorpio) also uses the EDIS-6 module. ## EDIS-8 The EDIS-8 module is used on the following vehicles equipped with the 4.6-liter [V-8](/source/V8_engine) [Ford Modular engine](/source/Ford_Modular_engine) between 1990 and 1997: - [Lincoln Town Car, Mark VIII](/source/Lincoln_Mark_VIII) - [Ford Crown Victoria](/source/Ford_Crown_Victoria) / [Mercury Grand Marquis](/source/Mercury_Grand_Marquis) - [Ford Thunderbird](/source/Ford_Thunderbird) / [Mercury Cougar](/source/Mercury_Cougar) - [Ford Mustang](/source/Ford_Mustang) The EDIS-8 Module was also used in Some later 5.0L Ford Explorers until around 2002 ## Aftermarket use in non-Ford vehicles 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](/source/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. ## See also - [Profile ignition pickup](/source/Profile_ignition_pickup) ## References - [US Patent Number 4,661,778: Ignition diagnostic monitor](http://patft.uspto.gov/netacgi/nph-Parser?u=%2Fnetahtml%2Fsrchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=1&l=50&f=G&d=PALL&s1=4661778.PN.&OS=PN/4661778&RS=PN/4661778) - [US Patent Number 4,922,874: Automobile electronic control modules communicating by pulse width modulated signals](http://patft.uspto.gov/netacgi/nph-Parser?u=%2Fnetahtml%2Fsrchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=1&l=50&f=G&d=PALL&s1=4922874.PN.&OS=PN/4922874&RS=PN/4922874) - [US Patent Number 5,014,676: Ignition system with repetitive sparks](http://patft.uspto.gov/netacgi/nph-Parser?u=%2Fnetahtml%2Fsrchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=1&l=50&f=G&d=PALL&s1=5014676.PN.&OS=PN/5014676&RS=PN/5014676) - [Ford EDIS technical information](http://www.dainst.com/info/edis/edis.html) - [MegasquirtnSpark-extra EDIS mode](https://web.archive.org/web/20070426014229/http://megasquirt.sourceforge.net/extra/edis-whatyouneed.html) - US Patent Number 6,115,665: Memory Efficient Computer System And Method For Controlling An Automotive Ignition System - [E-Type UK EDIS/Megajolt Ignition Support Thread](https://web.archive.org/web/20140714152238/http://etypeuk.com/forum/viewtopic.php?t=437) --- Adapted from the Wikipedia article [Ford EDIS](https://en.wikipedia.org/wiki/Ford_EDIS) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Ford_EDIS?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.