The guy that start this work loose interest in CloD due their "endless" bugs and give up.

Anyway this engines settings is now outdated with TFS patches changes. Look at ATAG forum actual, that probable will change again with Patch(fix) 4.50 to be released 'soon'™.

https://www.theairtacticalassaultgroup.com/wiki/doku.php?id=start
https://theairtacticalassaultgroup.com/forum/forumdisplay.php?f=128

And CLoD engines don't require checklist - their "Complex Engine Start Procedure" is fake - can be resumed in just: Open Fuel Cock, press de "magic" 'I' key.