Check 3 Wire Coil On A Plug With A Multimeter

In most car models, coil-on-plug (COP) ignition systems are the norm. But testing one for issues can be confusing, so below, I will explain how to test 3 wire coil on a plug with a multimeter. If you are working on Direct Ignition Systems, you should know how they work, specifically how to test them. … Read more