What is a spark plug coil called?
An ignition coil, also known as a spark coil, is an induction coil in your car’s ignition system which transforms the battery’s low voltage into thousands of volts which are needed to create an electric spark in the spark plugs to ignite the fuel.
Where is the coil on plug ignition system?
The most sophisticated of all ignition systems. The Coil On Plug Ignition System places an ignition coil; directly on the top of each spark plug. As a result, the Coil On Plug Ignition System; eliminates the need for distributors and spark plug wires.
What causes an ignition coil to malfunction?
Ignition coil damage is often caused by underlying issues never addressed in engine misfire repairs. Issues like spark plug gapping, leaking valve covers or moisture intrusion. A proper spark plug gap is crucial to an ignition system and the health of an ignition coil.
Where does the spark plug go on a cop engine?
On many COP-style engines the spark plug and ignition coil are mounted into a tube that is a part of the valve cover. Overtime the seal between the valve cover and that spark plug tube can fail, causing oil to leak in and fill up around the spark plug and ignition coil.
When to replace spark plug and ignition coil?
In the event that there is a coil failure due to an excessive gap, the spark plug and ignition coil should be replaced. It is also recommended that the ECU driver is verified for proper operation. Moisture is another cause of ignition coil damage, coming from the most likely and unlikely of places.
Can a bad spark plug cause an ignition coil to fail?
Most ignition coils are durable components, but they are neither indestructible nor designed to last forever. Ignition coils tend to fail because of bad spark plugs or plug wires. If your vehicle’s fuel-to-oxygen mixture is either rich or lean, therefore, your ignition coils may fail prematurely.
Where does the voltage go in an ignition coil?
Depending on the type of coil you have, this voltage either travels from the single ignition coil into a distributor, from the coil itself into a spark plug wire, or in the case of Coil-On-Plug (COP) systems, the coil sits directly on top of the spark plug.
What kind of spark tester is used for ignition coils?
An ignition spark tester like OEM 25069 takes the place of a spark plug – is grounded to the engine and can easily show you whether a particular wire or coil is providing spark.
What’s the difference between DIS and Cop spark plugs?
Older vehicles with a distributor have a single coil which provides voltage to the distributor. DIS, or wasted spark systems, use what is commonly referred to as a “coil pack” to send voltage to each spark plug wire, where other vehicles use a single coil for each spark plug wire. Most newer vehicles now incorporate COP.