Fuel level signal wire?

Tony8470

Registered User
Does anyone know which wire is the signal wire? I tried using what I thought was the signal wire on the back of the gauge cluster, and it's making the autometer gauge eventually go to empty. Even after first turning on and saying full...and being full.
 

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Can't use the back of the gauge - that's not even connected to the sending unit, but to the anti slosh board.

It may depend on year, but for 1991, my EVTM says it's yellow/white for all four clusters that year.

Tap off before the cluster - it also goes to secondary junction block to tap off to the VMM.

RwP
 
Thanks Ralph. Mine is 89. But there's a yellow/white there. I'll try to find that wire where the 2 plugs go into the cluster.
 
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