Glad you are making progress.

Your firebird sounds interesting. What diesel engine?

I also had some difficulty with the TCC controls. Between the conflicting theories of operation around and that temp setting in my .bin it took me a bit to get a grip on it as well. Also I did not want lockup in third gear. Some time in the near future I will be looking at the lean cruise. If you find that a different XDF file is needed or something other than that I would appreciate a heads up. Thanks