Before, Tracy put in the injector (mode 1) and ignition

(Mode 8) simulation circuits

 

Enlighten me on these simulation circuits.  I know mode 1 is for manual adjustment of mixture table values, mode 8 steps the timing. What other tricks have been added?

 

And did I see someone (maybe Tracy) say that mode 6 adjusts the point at which the timing is retarded?  Mode 6 is ‘Secondary injector differential adjustment’.

 

Thanks,

 

Al