Posts Tagged: Diagnose ignition coil failure

Diagnose ignition coil failure

Diagnose ignition coil failure — How to Most late model engines use coil-on-plug (COP) ignition coils. COP ignition coil provide higher voltage than coil packs because they operate with longer dwell time. In other words, they have more time to build a magnetic field before the power shuts off and the field collapse. So a COP produces a higher voltage spark when it collapses. Car makers need that hotter/longer spark to ignite leaner fuel mixtures in modern engines. What a COP ignition coil schematic looks like COP ignition coils can … Read More