dual YY axis problem

Hi, im newbie linuxcnc user, i have cheap chinese paraller port machinehave board one relay pin 17, i build my son first cnc, first time use linux and linuxcnc, my linuxcnc have debian 10 2.8.4-1
problem have i add dual YY motor to step conf wizard, not working, i modified config.ini file 
add kinematic XYYZ, joint 4, copy paste Y joint1 to joint2 under Yaxis ,z joint add number 3 have normal. 
x,yy, working now normal, but Z not move, and display not come yellow line if move Y axis motor move only, Z axis not move and not draw display yellow line. X move ok and draw line. homing axis show only homing X and Z not show homing all axis. not show Y axis. only X and Z.
unhoming show only unhoming all axis X and Z.
select axis manual display, X home axis ok,  yaxis not work, Z axis ok, at display.
why YY not can homing, why Y axis not show. why Z axis not move, why not can homing Y ?
why probe hall meter not show true/false if test. has added to config wizard probe pin 15, and E stop pin 10. but both hall-meter not show contact.
sorry lot have problem because im totally newbie whit linuxcnc and linux user and not undertand code.
sorry not understand good english. finnish understand 

Can you post the hal and ini files from the config folder.

As that will help.

yes can, or i not know how add files here. i try.

Hello,

A joint is missing in your HAL and the reference runs must be defined in the INI

HOME_SEQUENCE = -2

The minus says there are two joints for one axis, the number the order.
So for example Z=0, X=1, and the two Y=-2.
And one reference switch for each Y.
You can simply look at a suitable simulation and then take over the things that are still missing.
Google translator, as my English is even worse.

Greeting Frank

sorry my english not good what need do ? i understand add somewere home seguense.
but not understand this x example what ? need do ?
and what referense need do ?
sorry i not understand code and linux anythink my first time i instal linuxcnc and try use.
what simulation were ?
if someone have working HAL and INI files send to tread.
why linuxcnc not working double Y axis homing ? not have all Y axis homing buttons, only X and Z, but Z no move.

i not found anywere ,were have HOME SEGUENCE row. WERE have ?
need me add this line WERE ?
joint have same what i found some example how add double Y,
X=joint 0, Y= joint 1 and 2, Z joint 3. #Y motors run both together if bush Y but not whit g code or not if homing axis.Z not move newer.
WHAT reference switch ? i not found ref SW anywere what this is ?

Check out section 6.1 from here linuxcnc.org/docs/html/config/ini-homing.html#_homing_sequence

I have a dual y config example that I can send tomorrow if it is useful to look through

I have the same style machine with xyyz. I have edited your ini and hal to match what I have in regards to the joints / axis, and then the homing sequence that I use. I have all the homing parameters commented out because I use inches not mm, have a larger machine, probably different homing location, etc. You can use these as a reference just be sure to change the values to mm. Be sure to save copies of your original files before using any of the settings I have changed.

thanks this new ini and hall working little better, but not understand i start all axis show 0,1,2,3, if ewery number axis home axis change display XYZ
and machine-homing have joint0,joint1,joint2,joint3. but not homing all. not can use if bush homing joint1 no move joint2,=Y axis both motor together need move.
if homing all 4 joint manual then come display have XYZ and select Y and continue move motor both motor Y run, this is ok, but homing not can do if not Y motors can both homing together, now have all motor one only homing not both Y motors sametime.
or homing not need move motors only display numbers homing. i not know.
machine-homing not have selection homing all axis.
and all homing button not move motors.
select axis Xor Y or Z and bush homing not move motor, same all motor.     but zeroing display 00000 and come home 0/ mark front.
after all joint has manual homig, dispaly change not normal homing dot come H letter.

i test MDI site some g-code run X,Y but not Z one time try same code second time not move..
wery hard test and go back comment to forum, my internet pc have 2 floor at house, need go 1 floor out house run arund house to backyard were have workshop and cnc and test , and then run back to house and 2 floor to my pc. not have internet at workshop. hard.
upstairs use internet and usb memory move files to down backyard workshop pc and add files to linuxcnc.