APS-996A rs learning

i'm installing prestige APS-996A  on my friends 94 del sol and everything works except for the remote start

it says it needs to be programmed

i followed the instructions

1) turn key to on

2)press valet 3 times

3) immediatly turn key off

4)press and hold valet and turn key on

5) parking lights will flash when tach is learned

however. after pressing the valet 3 times and then turn the key off the alarm sounds. any ideas?

so i need to start the car

push the button 3 times

turn the key off

press and hold the switch , while doing this start the car.

i understand that however, as soon as i turn of the car the alarm is triggering it is exiting programing mode.