2000 Other Toyota Models no pressure

Did you bleed the system? If so when you bled the caliper did you get solid fluid or was it airy? Did you bench bleed the master cylinder before installing it
? If no to any of these, you may need to take it down and have the system power bled to force the air out. A new master is full of air and if it isnt bench bled, you will introduce all of that air into the system