COP refers to "Coil on Plug" meaning, as offered in some variants of the ej20, that for each spark plug their is an individual coil that resides atop of it(4 total), with 4 individual channels at the ECU .Sublimejoe wrote:I am also interested in the answer to this question. I dont even know what you mean by COP conversion or convertor.RckyMtnLegacy wrote:So I have read every electrical thread on the EJ20G ecu. What's the best place to start, should I do the converter or COP conversion? Which is the best to read to get this thing started up
The ej22/t utilizes a wasted spark setup with a single pack the resides on the top of intake manifold with 4 plug wires lead to each spark plug, and has 2 channels at the ECU.
The conversion would be going from wasted spark to COP.
My recommendation, if you have the time and money, you should make the COP conversion, as it is said to offer better spark.
Their are several good write ups on here with how-to explanation.