How To Check Spark Plugs With Multimeter

How to test spark plugs using a basic multimeter.

How to check spark plugs with multimeter. Test for a bad spark plug. The meter should read infinite. Step 1 remove the wire to be tested. Using an multimeter or ohm meter will verify if the wires are capable of delivering the required voltage to the spark plug but a close inspection of the insulation and plug boots is also necessary.

Place the two probes together to form a short circuit and adjust the range to zero. Touch the test leads together. In this video ill show a quick method you can check a spark plug to see whether its structurally sound or now whether you are trying to rule out a bad spark plug as your problem or simply want. Could it be the spark plug wires high tension lead ignition module coil or onoff switch.

Move the test leads apart. Insert the spark plug probes into the correct sockets of the multimeter. Set your multimeter to the ohms position. May be better off just getting a new spark plug spark plugs this vid might be able to give an on the spot indication if the plug is ok.

Touch the test probes together to determine the existing resistance in the test leads then hold one test probe on one terminal the other probe on the other terminal this wire shows 10000 ohms which by generic specs is good. Carefully examine it if it is a carbon wire which is used on most domestic cars. Select the maximum range to get an accurate reading. Its not always the spark plug at fault lets rule it out.

Save time and money. Connect test leads to the multimeter by plugging them into the jacks. Click here for a multimeter httpsamzn. You can test your spark plugs for continuity and shortage performing a few simple tests with a multimeter.

Why run to the store and buy a new spark plug as a gamble which may not be inexpensive when you can verify if the plug is the problem using your digital multimeter. You can perform tests on your ignition system with a multimeter.