How to Replace the Ignition Coil in a Nissan Maxima

The Nissan Maxima utilizes a distributorless ignition system (DIS), which relies on a total of six Maxima ignition coils to create combustion. The ignition coils do this by converting the low-voltage power from the battery into a high-voltage spark that triggers the spark plugs. If an ignition coil isn't working correctly, it reduces your engine's ability to perform correctly.
Difficulty: Moderately Easy
Instructions
Things You'll Need
Wrench or socket set
Maxima ignition coil
1

Prevent injuries, like electrocution or accidents, including engine fires, by disconnecting the ground battery cable from the terminal. The ground connects to the terminal on the post with a (-) sign.
2

Access the engine components by removing the engine cover, if there is one.
3

Detach the air intake tubes and the air cleaner assembly. Then gently move the harness, its bracket and hoses to expose the Maxima ignition coil.
4

Remove the wire harness connector from the ignition coil. You may also need to remove mounting retainers that secure the ignition coil in place. Typically, a small wrench or socket set provide the necessary grip to do this.
5

Pull up and slightly twist the ignition coil to release it from the cylinder head.
6

Install the new Maxima ignition coil. Make sure you get a good connection and a tight seal between the ignition coil boot and the cylinder head.
7

Reattach and reposition the components you moved in order to access the ignition coil.