Quote Originally Posted by jomobco View Post
I think somethings off in the diagram above. I kept getting that the controller wasn't found. I then went with the RJ12 to 2.5mm diagram posted previously and that worked. Success!

I should temper that. I'm getting free air numbers, not AFR numbers. It goes from 1-3% then jumps to 20.9% momentarily and then back to 1-3%. What is going on?
If you're getting anything other than "Controller Not Found" then the data connection is probably ok.
Does the analog output from the LC-1 work ok? Does it display the expected AFR?

Regards
Paul