The Ford EDIS or Electronic Distributorless Ignition System is a computer-controlled ignition system developed by
Ford
Ford commonly refers to:
* Ford Motor Company, an automobile manufacturer founded by Henry Ford
* Ford (crossing), a shallow crossing on a river
Ford may also refer to:
Ford Motor Company
* Henry Ford, founder of the Ford Motor Company
* Ford F ...
that uses an
ignition coil
An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system that transforms the battery's voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. So ...
for each pair of cylinders (
wasted spark
A wasted spark system is a type of ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a ...
). All the coils are placed in a single module called a coilpack.
Mazda 323
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, and the 1.9-liter
straight-4 Ford CVH engine
The Ford CVH engine is a straight-four automobile engine produced by the Ford Motor Company. The engine's name is an acronym for either ''Compound Valve-angle Hemispherical'' or ''Canted Valve Hemispherical'', where "Hemispherical" describes t ...
, between 1988 and 1993:
*
Ford Escort /
Mercury Tracer
The Mercury Tracer is an automobile manurfactured and marketed by Ford's Mercury division for model years 1987-1999, over three generations in three- and five-door hatchback, four-door sedan, and five-door station wagon configurations.
The firs ...
*
Ford Fiesta (Europe)
*
Ford Escort (Europe)
*
Ford Sierra
The Ford Sierra is a mid-size car or large family car manufactured and marketed by Ford Europe from 1982-1993, designed by Uwe Bahnsen, Robert Lutz and Patrick le Quément — and noted for its aerodynamic styling producing a drag coeffi ...
(Europe)
*
Ford Scorpio
The Ford Scorpio is an executive car that was produced by Ford Europe from 1985 to 1998. It was the replacement for the European Ford Granada line (although in the UK and Ireland the Scorpio was marketed under the Granada name until 1994). Li ...
(Europe)
*
Ford Mondeo
The Ford Mondeo is a large family car manufactured by Ford since 1993. The first Ford model declared as a " world car", the Mondeo was intended to consolidate several Ford model lines worldwide (the European Sierra, the Telstar in Asia and Aus ...
(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
The original Ford Cologne V6 is a series of 60° cast iron block V6 engines produced continuously by the Ford Motor Company in Cologne, Germany, since 1965. Along with the British Ford Essex V6 engine and the U.S. Buick V6 and GMC Truck V6, t ...
and 3.8L
Ford Essex V6 engine between 1990 and 1997:
*
Ford Ranger
Ford Ranger is a nameplate that has been used on multiple model lines of pickup trucks sold by Ford worldwide. The nameplate has been used for distinct model lines of vehicles worldwide since 1982 from the compact and mid-size pickup category. ...
/
Mazda B-Series
The Mazda B series is a series of pickup trucks that was manufactured by Mazda. Produced across five generations from 1961 to 2006, the model line began life primarily as a commercial vehicle, slotted above a kei truck in size. Through its ...
*
Ford Explorer
The Ford Explorer is a range of SUVs manufactured by Ford Motor Company since the 1991 model year. The first four-door SUV produced by Ford, the Explorer was introduced as a replacement for the two-door Bronco II. Within the current Ford light ...
/
Mazda Navajo
:''Sections of this article are translated from the Scottish pag
The Mazda Navajo is a mid-size SUV manufactured by Ford Motor Company for the Japanese automaker Mazda, and is a rebadged version of the first generation Ford Explorer. It was Mazda ...
*
Ford Aerostar
The Ford Aerostar is a range of vans that was manufactured by Ford from the 1986 to the 1997 model years. The first minivan produced by Ford, the model line was marketed against the Chevrolet Astro/GMC Safari and the first two generations of the ...
*
Ford Mustang (3.8L V6)
*
Ford Thunderbird Supercoupe
*
Ford Taurus SHO V6 (1989–1995)
*
Ford Windstar
The Ford Windstar (later the Ford Freestar and Mercury Monterey) is a minivan that was produced and sold by Ford. The replacement for the Ford Aerostar, the Windstar adopted the front-wheel drive configuration of the Chrysler minivans. From the ...
The European
Ford Scorpio 2.9 V6 24V Cosworth 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 Ford Modular engine
The Ford Modular engine is Ford Motor Company's overhead camshaft (OHC) V8 and V10 gasoline-powered small block engine family. Despite popular belief that the Modular engine family received its moniker from the sharing of engine parts across nu ...
between 1990 and 1997:
*
Lincoln Town Car, Mark VIII
*
Ford Crown Victoria
The Ford Crown Victoria ("Crown Vic") is a full-size sedan that was marketed and manufactured by Ford. The successor to the Ford LTD Crown Victoria, two generations of the model line were produced from the 1992 to 2012 model years. The Fo ...
/
Mercury Grand Marquis
The Mercury Grand Marquis is an automobile that was sold by the Mercury division of Ford Motor Company from 1975 until 2011. From 1975 until 1982, it was the premium model of the Mercury Marquis line of full-size sedans, becoming a standalone ...
*
Ford Thunderbird
The Ford Thunderbird (colloquially called the T-Bird) is a personal luxury car produced by Ford from model years 1955 until 1997 and 2002 until 2005 across 11 distinct generations. Introduced as a two-seat convertible, the Thunderbird was pr ...
/
Mercury Cougar
Mercury Cougar is a nameplate applied to a diverse series of automobiles sold by the Mercury division of Ford from 1967 to 1997 and from 1999 to 2002. While the nameplate is most commonly associated with two-door coupes, at various times durin ...
*
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 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
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=5014676.PN.&OS=PN/5014676&RS=PN/5014676 US Patent Number 5,014,676: Ignition system with repetitive sparks]
Ford EDIS technical information* 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
Ford Motor Company
Automotive technology tradenames