[JayG]

I am having a wierd problem with the brakes on my 04 996 Targa. From what I know, it is the exact same braking system as a 986S. If I am wrong, feel free to correct. It ABS only, no PSM or PASM

In any case what is happening is most of the time the pedal is rock hard and the brakes work perfectlty. Sometimes with even pressure on the pedal,iot ios rock hard and then it drops a small amount and feels slightly soft, but still the brakes work fine.

Every now and then, you can feel ABS engage. The odd thing is it sometimnes happens art freeway speeds with just slight pressure on the pedal. There is no way I am on the brakes hard enough to lock the wheels. It also happens occasionally at slow speeds coming to a full stop. That I could think was actual wheel lock.

The other thing that happened a few times is brakling from around 30 mph and the car pulled hard to the left. That has only happened 2 or 3 times.

I have repleced the master cylinder thinking that might have been the problem and nothing changed. I did a full flush and bleed when I replaced it.

I am thinkiing it might be the ABS controller or a sticking piston in one of the calipers. Can I swap the ABS controler from my 04 986S with the 04 996? Do they require any programming?

Any thoughts to what the probklem is?