speedo dead

Hey, i had my engine management light come on earlier, after it was on for about 10 minutes of driving i turned the engine on and started up again, the light was off when i started the car back up but went back on after 2 minutes, then my speedo just died the car still feels the same, drives the same. any ideas ?
thanks.

the clip holding your speedo cable in the tranny might have popped of and the cable might have came out