@gunrunnerjohn posted:I've loaded dozens of chain files with an old H level TIU before I installed the rev L on my bench. I doubt it's the rev level of the TIU, I'm thinking it's not working right, probably signal issues. Did you try a different channel?
I tried 3 different channels John, same zilch result. Today I am going to try another spare rev I TIU, and higher DC supply voltage. If that doesn’t work there is always the fire pit in the backyard haha! 
