This is the part in the upper right corner, on top off the intake manifold. This was the part before I took the motor apart (blown head gasket).
This is the part now without the other piece I disconnected, and now I can't find. Need help so I can order a new one or used. Thanks

 

The missing half of that 42 pin connector is part of the engine bay harness. Look behind the engine above the bell housing or hanging down somewhere on the driver side of the engine bay. It's large and connected to a large wire harness branch so it should be easy to find.

 

Thanks for you help. I found it hanging beneath the exhaust manifold. Relieved!