How an Ignition Coil Works - Drive Accord Honda Forums |
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
post #1 of 1 Old 12-25-2017, 04:14 PM Thread Starter
4th Gear

speedkar9's Avatar

Join Date: Mar 2016
location: Toronto, Canada
Posts: 212
Thanks: 3
Thanked 46 Times in 29 Posts
How an Ignition Coil Works

Here's what's inside an ignition coil and how it works to increase the voltage to fire a spark on your car:

Here's a few photos of the ignition coil.

Starting with the coil, removed from my Toyota Corolla:

An ignition coil is located on top of an overhead cam engine. Its responsible for increasing voltage from the car's 12V to the thousands of volts needed to fire a spark in the combustion chamber:

When chopped open you can see the coil and other layers, along with the center iron core:

Here are all the components inside the ignition coil:

Here's a system diagram of how the ignition coil works electrically:

Note its the voltage spike caused by varying the electromagnetic field that fires the spark, and not just the step up transformer itself.


2007 Lexus GS350
2004 Toyota Camry

YouTube Automotive DIY Videos:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
speedkar9 is offline
The Following User Says Thank You to speedkar9 For This Useful Post:
enne (12-27-2017)


coil, ignition, plug, replacement, spark

Quick Reply

Register Now

In order to be able to post messages on the Drive Accord Honda Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
The answer to the random question may be found under the Off Topic section of the forums and in the "Drive Accord Forums" category.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to

Related pages

what type of gas does acura tl usehonda odyssey wheel locksaverage commission car salesman2010 honda accord burning oilhonda recall paintrsx bolt patternnokian entyre forumscivic wheel bolt patternhonda pilot extended warranty pricehonda distributor o ringfixing blown speakerheadlight restoration clear coatacura tl battery keeps dyinggloss black vinyl wrap roofhonda antifreeze coolantcoolant level droppingacura rsx bolt patternquarter panel replacement cost2008 honda accord coupe 4 cylinder reviewauxiliary cable best buycb7 fender flareshonda jazz cvt transmissionsonax pnspurolator syntheticaftermarket backup sensorsp0706 transmission range sensorgoodrich advantagewhat does code p0705 meanpainting hubcapshonda crv pollen filterfirestone road hazard protectionenkei oem wheelsprevent car door dingshondaautomotivepartsautopage rs 1100thayer honda bowling green1997 accord mpghonda accord breakgm12345349is partsgeek a legit websitemobil high mileage oil review1996 honda accord seat covers2007 acura mdx catalytic converterhonda accord 2004 3.0 v695 civic speedometer2003 honda element check engine lightnails on a chalkboard gifoxygen sensor heater circuit malfunctionidatalink ads-dlairrex reviewhow much is it to paint a car at maaco93 honda accord radiatorhow to troubleshoot power windowshonda civic ignition switchjdm 8th gen civicamp for speakers and subbluetooth aux adapter best buy2007 toyota camry trunk lidoem acura tl wheelswindshield wiper arm springinfiniti fx35 transmission problemsgolf gti v6honda accord srs light2006 honda civic hybrid ima lightturn signal stops blinkingcd converter to auxcupping of tirescracked front bumperbest synthetic oil for honda accordhow to remove road salt from carwhere to buy honda atf z1 transmission fluidignition cylinder replacement costfront brake pads and rotors replacement costheadlight lense replacement