I had a speedo, tach and fuel gauge go out all at once. It turned out to be a open in the logic ground circuit. a quick jump to ground and I'm back on the road. thanks to those who tried to help.

 

where was that there are other people with the same prob

 

yes please where was it

 

the logic ground circuit provides a ground for the speedo, tach and fuel gauge. Its the green and black wire found in the B2 slot of the black/blue connector at the back of the I/P cluster. I spliced into the green and black wire and grounded it at the fuse block under the dash.

This is a temp repair but will work until I can find out if the ECM is responsible for the circuit or not.