I have 1990 LS 400. I replaced the Master cyclinder because the brake pedal went down close to the flood. I bleed the master cyclinder before installing. I bleed the lines for air, and still can't get a good pedal for driving condition. I removed all the wheels and brake pads to check for leakage. I discovered right rear cylinder was leaking. I replaced it. Still can't get a pedal. What is a good bleeding system to remove air, and get a good pedal. I tried RR,LR,RF,AND LF. Also I read somewhere here to, LF,RR,LR,ANDRF. Can someone share some light for a pedal for brakes. Is its possible for the ABS to malfuct.