Never use a ground on your engine harness, as it can cause damage to your powertrain control module (PCM) Now using your automotive multimeter in the DC volts mode, put the black lead on the negative terminal of your battery. Turn your Nissan ignition to the “ON” position to power the EFI system in your 2.4 liter engine. You will begin the test by checking for power at the ignition coil. The coil is connected by way of a two pin weatherproof connector.
How to install spark plugs in 2008 altima how to#
How to test your Altima ignition coil for power This will cause a loss of power and sluggish performance, and possibly contribute to engine misfire. This causes the spark plug wire to lose its normal resistance until it cannot conduct spark properly. Over time moisture and corrosion can cause your spark plug wire to fail. This is easily done by swapping around your spark plug wires to determine if one of them has corroded or is failing. If your ignition cap and rotor check out, eliminate your spark plug wires as the possible culprit next. This is one of the most common problems that can contribute to misfire. If your Nissan Altima is experiencing ignition misfire, make sure to check the points on your distributor cap first.
Because the distributor as well as your cap and rotor have big parts to play in your ignition make sure to check those points first. Before you begin our How To DIY guide on testing your Altima ignition coil, you should first check to see if you have spark, You can perform this simple test by inserting a spark plug into any of the wires, and resting it against your valve cover.