Thanks for all the suggestions.
It’s a steam engine. It’s my first upgrade from scratch on a steamer so I have been really careful with the tether.
It’s a Darstaed A4 Mallard for the little lads Christmas present. So I have put in Guns’s Super Chuffer and a Lionel smoke unit. It’s a tight fit!
Bruce’s idea worked I swapped the R2LC into my other cruise commander equipped engine (a GG1) and reset the feature code to 6 and it works fine.
Got the A4 running and all features operating correctly! Loving the super chuffer John👍😎. I post a vid when I get the chance. Nearly got caught by Mason just now when I was testing the engine. Hidden away now.
That was a close one!
Thanks for all the help guys.
Nick