Does the broiler work and heat ?

Are you sure the new igniter is not the problem ? (loose connection, cracked broken igniter, etc.)

Do you have a VOM multimeter so you can check for voltage to the bake igniter from the thermostat ?

This is where we need to start , so we know what direction to take.

:) :) :)

Frank,

Check and make sure, your Clock is Not set in a Self Clean or Timed Bake,

setting, by mistake, It has to be set in a Manual mode for the oven to operate,

If that checks OK.

You will need to check for 120 VAC across the 2 wires to the igniter(s), from

the thermostat / control with the oven in a bake and broil settings, to

determine if you have a broken wire or inoperative control.

Good Luck,
:) :) :)