Spongy Brakes

[Ultimategtr]

R33 gts25t, manual, with ABS.

Changed to RBF600. I pumped the fluid out of the master cylinder using a vacumm, then poured new stuff in, and led the brakes (rear left, then right, front left then right).

Brakes are a bit better, but still spongy.

Using Ferodos DS2500 all round, 1/2 left. Discs were machined when pads were put in. No visible warping.

The front left brakes makes a clicking sound when pumping the brake pedal.

Unsure what to do, and yes, have searched for about 20 minutes reading multiple threads. My master cyl isnt flexing much at all.

Is there a special way of bleeding an ABS equipped brake system?

[blind_elk]

Did you bleed the master cylinder (needs to be bled first, b4 each wheel)? Did you bleed the ABS unit (should have bleed nipples on top)?

[Ultimategtr]

No i didnt sorry.

I specifically called the service deptartment at nissan. They said you dont need to.

How would I bleed the ABS unit? Same process as doing the wheels?