the fan i must have it switch and when i run the job the cooling fan does not start on it own. It works with "FAN 0" i just turned it on now and it works.
I'm not really sure what you mean with this.
What do you have connected to fan port 0 and 1? Are those meant to both be part cooling fans? Are they supposed to both work together?
Is Fan port 2 for your hotend heatsink fan?
For the baby stepping, if you want to make that adjustment permanent, add the value to your G31 Z.
G31 P45 X25 Y25 Z2.270 would become G31 P45 X25 Y25 Z2.790