[DYN@M1T3]

I poured brake fluid into the master cylinder and it still comes on. What else can I do?

[93stangfutr5.0]

you probably have a leak check the lines going from master cylinder to the brakes check the brake bleeder on your brake make sure they are tight.

[93stangfutr5.0]

just notice you didnt mean brake lines you ment light does it stay on all of the time or is it not coming on at all.

[pootitang]

Do you mean the instrument panel brake warning light?
Check the sensor connection on the master cylinder('93s have a low fluid sender,I believe)also,it is possible that the parking brake could trigger the warning light......all this is assuming that your brakes are working...you know,good pedal pressure,no grinding the 'tang is able to stop,etc.