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Subaru Ignition Coil Replacement

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Subaru Ignition Coil Replacement

Subaru Japan Ignition Coil Subaru  Ignition Coil Subaru Japan Ignition Coil Subaru  Ignition Coil Subaru  Ignition Coil



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What is an ignition coil?

An ignition coil is a metal coil, similar to a tesla coil but not exactly the same, that is protected by a thick plastic or composite housing. The job of the ignition coil is to take the low voltage created by the battery and amplify it to the thousands of volts needed to run the car and its components. There will be a thick conducting wire run into the coil which comes directly from the spark of the battery. The coil then routes that spark through the ignition systems that fire the spark plugs.

Are there different applications of the ignition coil?

Absolutely. In older cars, the coil would still get its spark from the battery, but it would then route it to a distributor which relied on a rotor to rotate the spark to each cylinder connection. Firing off of ignition points, the electricity is then routed to the spark plugs. In later designs, the coil operated in the same fashion but sent the spark to an HEI distributor that didn't use points. In today's vehicles, the application of the coil is vastly different. Coils now sit right on top of the spark plugs or spark plug wires and route current transferred from the battery directly to where it is needed. Most of the time, its one ignition coil for each cylinder, but some car makers will run two valves off of one ignition coil. The new system removes the need for a distributor, rotor, distributor cap, and ignition points. It allows the car's ECU to control the firing order.

What can go wrong with a coil?

The typical cause of problems for ignition coils would be corrosion from air flow or exposure to any chemicals, lubricants, solvents, or cleaners in common use around the motor. The connecting points will get corroded causing a lower grade spark and possibly intermittent spark. Coils will occasionally fail altogether internally becoming useless, but this is rare. In older cars with distributors and ignition points, coils sometimes overheat from current strength and would melt the wires connected to it.

How do I know if I am having coil problems?

If you have a complete coil failure, it would be easy to tell as your car won't start. If you have the more common corrosion problem, then it all comes down to a weaker and intermittent spark as the transmission of your electrical current will be disrupted. Symptoms of this problem include hesitation while starting the car, weak throttle response during acceleration, rough idle, misfiring, backfiring, and dim or weak accessories like the headlights and radio.

What does a performance coil do?

A performance coil has one primary purpose with a few added advantages. The primary purpose is to transform the electricity of the battery into a hotter spark than what a stock coil would provide. This is great for those vehicles with MSD or other race distributors, with enlarged fuel injector ports, a custom engine displacement, forged racing pistons, or many other race applications. It provides the spark needed to maximize the performance of the ignition system. Without the proper set up of supporting components for a high performance ignition coil, it can actually be harmful to your system. If not harmful and the system is equipped to handle the spark, the benefits available would be longer lasting coil life, better protection in extreme circumstances, and less corrosion.

Latest Subaru Ignition Coil Applications

79 -  Subaru 4WD Wagon EA63,71 Japan Ignition Coil border= Japan Ignition Coil
79 - Subaru 4WD Wagon EA63,71 W/ Hitachi Distributor Ignition Coil OEM
90-94 Subaru Legacy 2.2 2WD EJ22 Japan Ignition Coil border= Japan Ignition Coil
90-94 Subaru Legacy 2.2 2WD EJ22 for models w/ A/T New attaching bolts may be required. Ignition Coil New attaching bolts may be required.
  Ignition Coil
06/99 - Subaru Legacy 2.5 4WD EJ25 Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Ignition Coil
03/02 - Subaru Forester 2.5 4WD EJ25 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required. Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Ignition Coil
05-09 Subaru Legacy 2.5 4WD EJ25 Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Ignition Coil
10/01 - Subaru Impreza 2.5 4WD EJ25 Coil Over Spark Plug Ignition Coil Coil Over Spark Plug
  Ignition Coil
06/99 - Subaru Outback 4WD 2.5 4Cyl EJ25 Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Ignition Coil
- 03/04 Subaru WRX Impreza Turbo EJ20 4 required Ignition Coil
  Ignition Coil
12/97 - Subaru Impreza 2.2 4WD EJ22 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required. Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Ignition Coil
04/03 - Subaru WRX STi 2.5L Turbo EJ25 4 required Coil Over Spark Plug Ignition Coil Coil Over Spark Plug
  Ignition Coil
- 04/05 Subaru Impreza 2.5 4WD EJ25 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required. Ignition Coil 4 Pin Plug directly on coil - ** Please check that the coil is properly grounded and check the Crank Sensor for proper operation ** - New attaching bolts may be required.
  Prenco Ignition Coil
10/01 - Subaru Impreza 2.5 4WD EJ25 Coil Over Spark Plug Ignition Coil Coil Over Spark Plug
90-94 Subaru Legacy 2.2 4WD EJ22  Ignition Coil border= Ignition Coil
90-94 Subaru Legacy 2.2 4WD EJ22 for models w/ M/T 3 Pin Plug is on a short pigtail Ignition Coil 3 Pin Plug is on a short pigtail
  Prenco Ignition Coil
06-07 Subaru WRX Impreza 2.5 EJ255 4 required Coil Over Spark Plug Ignition Coil Coil Over Spark Plug
  Ignition Coil
07/96 - Subaru Outback 4WD 2.5 DOHC EJ25 3 Pin Plug is directly on the Coil Ignition Coil 3 Pin Plug is directly on the Coil
 - 06/96 Subaru Legacy 2.2 SOHC 2WD EJ22  Ignition Coil border= Ignition Coil
- 06/96 Subaru Legacy 2.2 SOHC 2WD EJ22 3 Pin Plug is on a short pigtail Ignition Coil 3 Pin Plug is on a short pigtail
  Prenco Ignition Coil
85-87 Subaru XT 1.8 Turbo 4WD EA82T W/ Hitachi Distributor Ignition Coil
90-94 Subaru Legacy 2.2 4WD EJ22 Japan Ignition Coil border= Japan Ignition Coil
90-94 Subaru Legacy 2.2 4WD EJ22 for models w/ A/T New attaching bolts may be required. Ignition Coil New attaching bolts may be required.
 - 06/96 Subaru Outback 4WD 2.5 DOHC EJ25  Ignition Coil border= Ignition Coil
- 06/96 Subaru Outback 4WD 2.5 DOHC EJ25 3 Pin Plug is on a short pigtail Ignition Coil 3 Pin Plug is on a short pigtail
87 -  Subaru Leone/LoyaleTurbo4WD EA82T Japan Ignition Coil border= Japan Ignition Coil
87 - Subaru Leone/LoyaleTurbo4WD EA82T W/ Hitachi Distributor Ignition Coil OEM


Some Subaru Ignition Coil Applications (View Full Catalog Above)

Subaru 2WD models 1.6 & 1.8 Subaru 4WD models exc. Brat Subaru 4WD Wagon
Subaru Brat 1.6/1.8 Pickup Subaru Forester 2.5 4WD Subaru Impreza Outback Sport 2.2L
Subaru WRX Impreza Turbo Subaru Impreza 2.2 4WD Subaru Impreza 2.5 4WD
Subaru WRX Impreza 2.5 Subaru WRX STi 2.5L Turbo Subaru Legacy 2.2 2WD
Subaru Legacy 2.2 4WD Subaru Legacy 2.2 SOHC 2WD Subaru Legacy 2.2 SOHC 4WD
Subaru Legacy 2.2 Turbo 4WD Subaru Legacy 2.5 4WD Subaru Legacy 2.5 DOHC 4WD
Subaru Leone/LoyaleTurbo2WD Subaru Leone/LoyaleTurbo4WD Subaru Outback 2.5
Subaru Outback 4WD 2.5 4Cyl Subaru Outback 4WD 2.5 DOHC Subaru XT 1.8 4WD
Subaru XT 1.8 Turbo 4WD

EA63,71 EA71,81 EA82 EA82T EJ20 EJ22 EJ22T EJ25
EJ255


More Applications (View Full Catalog Above)

Acura Audi Austin Healey BMW Buick Chevrolet Chrysler Dodge
Eagle Ford Geo GMC Honda Hyundai Infiniti Isuzu
Jaguar Jeep Kia Lexus Lincoln Mazda Mercedes Benz Mercury
MG Mini Mitsubishi Nissan Oldsmobile Plymouth Pontiac Porsche
Rolls Royce Rover Saab Saturn Scion Suzuki Toyota Triumph
Volkswagen Volvo
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