Download How To Test Spark Plug With Multimeter Pictures. An ohm meter, which is part of a multimeter, can only check a spark plug for a short circuit or a breakdown of insulation resistance. From the definition, a multimeter measures current, resistance, and voltage.
For this test, use a simple analog or digital ohmmeter.
I strongly recommend against having the multimeter even touch the spark plug wire! Check the owner's manual to find out what your vehicle's spark plugs look like check the reading on the multimeter and compare it to the resistance specifications for the primary winding if the reading falls outside the normal resistance range, you'll need to replace the ignition coil. Finding out which cylinder is misfiring and finding out why. Hold the end of the spark plug wire close to a metal surface.