Beretta.net

looking for some help for my digital dash on a 90 indy series

I OWN A 1990 BERETTA INDY SERIES WITH THE DIGITAL DASH .HERE  LATELY IT,S BEEN ACTING CRAZY, THE SCALE FOR THE SPEEDO WILL ACTUALLY JUMP TO THE TOP AND WORK IT,S WAY DOWN INSTEAD OF THE OTHER WAY, AND THE NUMBERS IF YOU CAN READ THEM MAY SAY 48 49 MPH WHEN I,M REALLY DOING 70. JUST AS SOON AS YOU ST...