So...I have figured out my problem and it is dumb. I had a new battery put in and let the dealership do it. Turns out my optima is too small for the terminal connector so it was loose on the negative and making the electrical go a little crazy. Tightened it up a few days ago and no more issues. Also cleaned map and I can tell a big difference in the car.

GratZ :tup: I am glad it was something simple like that. Electrical gremlins can be a nightmare to chase down.

oh man! congrats to you! so the fault was a massive bad ground - not something that the FSM would tell you to check but hey, i'm really happy you got to the bottom of it and it cost you nothing to fix. i'm going to clean my battery terminals tonight and snug up the connections

Did you get your issues fixed yet? Guessing the battery wasnt the issue for you was it?

battery posts and connectors were flawless but i roughed it all up with sandpaper anyway. It didnt fix my issue.

I'm now thinking there might be a bug in my throttle map which only bites under certain conditions. It still doesnt explain why i had zero issues for many months. strange coincidence...