Ok I replaced the leaking plug and no change.
I never cleaned the computer as I couldn't find any computer close to the trans that oil would have contaminated.

I do have some new codes that came up and are leading me to believe the conductor plate is faulty. It has just been replaced so I thought it would be ruled out but the codes speak for themselves.
p0560 system voltage
P0720 output speed sensor circut
P0500 vehicle speed sensor

What do you guys think? Am I headed in the right direction?
I also have noticed my speedometer will sometimes not work properly.
Thanks for any help.