COP-or-Coil-On-Plug-Ignition
Mandy Concepcion
2011-09-07
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Most newer engine systems now use the COP or coil on plug ignition system. The system works by having a dedicated coil per cylinder. In most cases these coils are triggered by the ECM itself, which also creates many other problems such as high voltage spikes at the ECM circuitry. See the whole story right here.
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