two problems 3 amigos /brakes hard

hi guys just gone to to my landy and it wont start The hill descent, traction control & ABS lights are staying on and its trying to turn over but wont fire at all i had the same trouble a couple of days ago and jump stated it no problems and ran fine until today .

also noticed that the brake pedal is going hard when i have to do any small movements also when braked a few times in traffic it goes rock hard and nothing there until i rev the engine. when engine was working i unpluged the pipe from the servo it hissed and blocked the pipe of as per other post on here its sucking air like its ment to were do i go from here .

any help guys

I wont speak about the 3 amigos cos it's overcovered(google out "3 amigos" and u'll be amazed), .... the brake is getting hard on repetitive braking cos the vacuum pump is quite small and cant recreate enough vacuum in a very short time ... it's a common issue on D2's .... though if it's very annoying u might have a vacuum leak issue or tired pump.