I'm not SD but I changed mine like the op and it worked for me.
But it still unlocks when you ease up on the gas cruising down the interstate...lock...unlock...lock...unlock f*ckin annoying!

 

that's what I hate the most

 

Yup, the dreaded low throttle unlock issue with the 80's. Evidently it is something in the base code of the 80 controller that does it. There has been a thread about it on HPT for a couple years now but no one that is smart enough to fix it cares to. It will be a happy day when someone comes up with a solution for it.

 

Like I said, lock-unlock problem doesn't affect me at cruise. Here is my latest tune but beware, this is a rookie tune and there might be some things you don't like in it. Works for me, though.

 

cool, I'll look into the trans tune. I appreciate it

 

Subscribed. Hopefully this fixes my issue.

 

You subscribed to a four year old thread. I daresay you won't see a solution showing up here lol.

 

i was on my phone and subscribed so i could get back to it when i had my laptop. it didnt work for me lol. it wouldnt lock up at all when i did it.