The sparker that I recommend to use is the HEI sparker. Ignition coils take energy from the battery (usually 12 volts) and convert it to a high enough voltage (50,000 volts or more) to create a spark. As with most types of vehicular maintenance, you'll want to begin the test with the vehicle in park and with the engine off. If you have never heard of or seen this tool before or what it can do to help in your diagnostic tests, then I recommend the following article (within this site): The HEI Spark Tester. Only the older vehicle (mid 90s on back) have the ignition control module externally mounted somewhere in the engine compartment. Testing the remaining wire (circuit) for the Switching Signal. Test the Primary Winding . The ignition control module (ICM) and ignition coil tests in this article assume that your vehicle is Cranking but NOT STARTING due to a NO SPARK Condition. Ground the HEI spark tester with a jump start cable directly on the battery negative (-) terminal. From coils and coil packs to electronic ignitions and computers, the ignition system can be a mystery. Also, knowing some working theory and some tests will help you diagnose the vehicle when a scan tool is not available. The power balance test is an easy way to verify if each cylinder is firing. These are the three tests that have to be done to test for a bad ignition coil (Coil on Plug): Testing for spark. Connect PicoScope Channel A to the coil signal circuit. Items you will need. Testing for spark. Test for spark first. Most of the Coil-On-Plug ignition systems have the 'ignition control module' function integrated within the ECM. Livraison rapide Produits de qualité à petits prix Aliexpress : Achetez malin, vivez mieux Disconnect the coil’s electrical connector. 2. OK, before we jump into the testing part (in the next page), you need to know a few more things and this is what each of the three wires that connect to the ignition coil connector do. Testing the Power Circuit for battery voltage (12 Volts). Turn the ignition key to the On position. Connect a digital voltmeter to across connector terminals 1 and 5. Testing the coil is the first step in troubleshooting the system and will tell you without question if the coil is functioning as it was designed. One wire of the Coil-On-Plug ignition coil is the Power Circuit that delivers 12 Volts. Measuring ignition coil resistance was once a popular test method. If you do not have one, you can buy one at a home center or building center that carries electrical supplies. Label the cables running into the coil, if there are more than one. To effectively diagnose the Coil on Plug Ignition System (the type with two wires in the coil's connector), we need to know two basic pieces of information about the Coil-On-Plug ignition coil. Suzuki  |   No guarantee or warranty is implied. Alright, lets see some of this stuff in action in the next pages.... IAT Sensor Wire Insulation Problem And Wires Shorted Together, How To Bench Test A Ford Relay (Large Relay), If this article was helpful, TELL A FRIEND! My bi… This material may not be reproduced without the author's consent. SPONSORED LINKS. This is the very first thing that has to be done. (The Greek letter omega denotes ohms.) Using a multimeter set to DC volts, check for power to the ignition coil with the key in the RUN position. Open the hood to locate the ignition coil. A Test Light. Since the connector only has two wires, one of the two will have the 12 Volts. How to test an ignition coilThis testing procedure is valid for just about any automotive coil. Testing the coil requires an ohms meter. The primary winding of your ignition coil is the first to receive voltage from the battery, so we'll follow its lead and test the primary first. Use the information in this video at your own risk. TEST 5: Testing The Ignition Coil's Activation Signal. Retrouvez tous les avis et tests Ignition Coil Connector Set sur Aliexpress France ! To test the operation of both the ignition coil and the spark plug, connect the tester between the spark plug boot and the spark plug. The procedure involves using a digital multimeter (set to ohms) to check the resistance of the primary and secondary windings inside the coil. Check here for special coupons and promotions. This was performed on a 1997 Nissan Maxima. Start the engine A signal must be clearly identifiable on the oscilloscope.