As I've posted before, I bought my 818C partially assembled. Apparently it was running fairly well when I bought it (I saw a video of it running), but after I took delivery it doesn't start or run well at all. I've been digging into it and found no spark on the 2 right side cylinders. I swapped coil packs around and they all work fine. There is 12V on each coil wire (the red wire). There are 2 other wires to each coil and I'm not sure what they are; even looking at a wiring diagram I'm not sure. The red lead is common to all the coils, and another lead is also common (ground?). Then there is one that must be a trigger connection to the ECU.

Does anyone know what the other leads should have in the way of voltage? Also, here is a picture taken from the left side looking across the engine. The coil leads from the right side go into a large harness that disappears under the intake; I'm pointing at it with the white pointer. Is there a connection somewhere I can check?

I wasn't getting any error codes indicating anything like this.

thank you,

Rick

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