Engine diagram needed

No problem. I am attaching the wiring diagram for the complete powertrain below.

Here is a guide that will help with wire testing if you need it:

https://www.2carpros.com/articles/how-to-check-wiring

I split each page into two halves because they are easier to read like that as they are not as small.

Please run through this and let us know what questions you have.

Thanks