Ok, so here's what happened...

I removed the nut/bolt combination from the OVP bracket and lifted the OVP out from behind the battery, I pulled the fuse out but it looked to be ok, so I put it back in. The part number was the new one 540 67 45. I gave it a couple of shakes and tapped it a few times for good measure and put it back in.

I also checked the battery, 12.7 not running, 14.18 running at idle.

I tried to reset the codes but only the pin 14 code 11 cleared completely and went to 1 flash. I could clear pin 8 code 4 for a few minutes but it came back on when rechecked. Pin 4 code 10, and Pin 8 code 13 never cleared at all.

But here is the amazing news! The check engine light is off, and the car runs great, no more idle problems.

So, the questions I have are;
Why is the check engine light not on if the codes are still set?
Should I replace the OVP now or wait until this or another problem occurs?
Any other suggestions on getting rid of the codes that are still set?

This excersize absolutely proves that one should not start replacing things without having a good idea as to what is really going on.

Thank you so much for your help!