Quote Originally Posted by Mean Green Z28 View Post
don't 4L80E's unock TCC for shifts? I've seen that in my logs. It'll go 1>2>3>LOCK>UNLOCK>4>LOCK ... annoying
It unlocks after the fact when it realizes what it just did, so 1>2>3>LOCK>4>UNLOCK>LOCK. I think I just need to have 3rd lock later or 4th upshift sooner so it doesn't get confused.