Board computer

[keith arthur <arthur_k@hornet.lynchburg.edu>]

Hi everyone.
I just got my hands on my Mothers-soon to be mine- 1991 90.  I need help
with the trip computer.  The average speed, time and miles to empty all
work fine. but the instantanious fuel consumption, average fuel
consumption both read 200. and the g->  always reads 0.0  what do i need
to do get these working again.  If i reset the average fuel consumption
it goes to 0.0 but as soon as i drive for any distance it goes 200.
thanks in advance
keith