Toyota Repair: 2001 Nissan pathfinder ABS actuator, nissan pathfinder, s brake

Question
i had a problem with my brakes becoming spongy. The reservoir for the master cylinder was empty so i fill it and then bled all my breaks. i have checked for leaks on all the lines but  haven't been able to find one. i replaced the master cylinder because i couldn't bleed the air out of the lines so i figured that was the problem. now i realized that the problem is in the abs actuator. i have bled the lines leading into the actuator with success, but where the lines come out i am getting lots of air? is there a valve that i can replace or do i have to replace the whole actuator?

Answer
I'm not familiar with Nissan's brake abs system but I don't think the actuator has to be replaced, there may be a special bleeding procedure that Nissan recommends, you could have a Nissan tech try to bleed the system before spending hudreds of dollars on the actuator only to have the same problem.