It was the black and blue wire on coil 2. Which is the one on the right if you looking at the front of engine. Yes it was the 3 pin from the power wire . We put a new coil on still the same. The other thing I noticed was the coil was so hot you could not touch it after running on 2 cylinders in about 3 min. What should the voltage be at the signal wire? The left coil read .093. The coil that is not firing was reading 6.9v at the signal wire? I think the ecm is bad now?