No, I already clarified that I have proper power, ground, and continuity to ECM on pin 61 for coil 3 connector. Nothing seems shorted either.

I recently started a new thread on this in G35 Coupe V35 2003-2007. I have measured the signal from terminal 1 on the connector (the connection to ECM signal) when it is misfiring and it is getting 0V whereas the other working connectors display a 0.2V square wave at idle.

With continuity but no signal, the only thing I could think is that the ECM would be having issues, however the strangest thing happens when resetting the ECM. The misfire disappears… not just the code, the actual misfire it seems. Cyl 3 will start firing and the car seems to be running normal, but after driving it for a bit the misfires resume, the spark drops off, and the car starts idling rough and throwing codes again. I was trying to determine if this is just a continued ECM failure, or if it is some kind of limp mode where the cylinder is shutting off to protect the TWC.

Very confused..

 

Well it looks like u have a bad ECU then.