CAR: 1990 CRX Si
NEW PARTS:
master cyl
rotors
pads
calipers
braided lines
fluids, etc

i'm having a problem finding a brake fix. the pedal goes all the way to the floor while the car is running. we replaced everything with no results. i also did all the tests in the helms for the master, booster and check valve.. everything seems OK. when the booster vacuum line is removed from the booster and plugged with my finger i have lots of pedal...where it should be..but when i release the hose the pedal goes to the floor again.

i have talked to a few people about the brake booster being bad but i'm told they haven't ever seen a bad one. i think it has to be it...anyone???

we did overheat the brakes very bad at the homestead enduro and they haven't been right since. i need help ASAP as we leave for the VIR enduro in few days. thanks in advance..
~Slacker Jay