Posted on Friday, August 15, 2008 - 09:41 pm:
The only way I can think that a coil can overheat is when a constant +12VDC is applied with full current drawing through the coil regardless of the normal ignition signals from the cam position sensor that should be present.
So I would think that if there were a short-to-ground in the signal wire circuit that goes from the suspect coil to the cam position sensor, the coil would overheat because there is no normal interruption of the abnormal constant current being applied. I would double-check all the wiring involved with the ignition circuit very, verry carefully, looking for chafing spots in places where the wire harness might touch ground potential areas.