I AM TRYING TO ELIMINATE THE DIGITAL DASH IN MY 89 GTA.I HAVE ALREADY REMOVED THE DASH AND INSTALLED A DASH FROM AN 88 FIREBIRD.I DECIDED TO JUST CHANGE THE CLUSTER CONNECTORS INSTEAD OF THE COMPLETE INTERIOR HARNESS.THE PROBLEM THAT I AM HAVING IS THE VOLTAGE AND FUEL GAUGES ONLY WORK CORRECTLY IF I SWITCH THE DOME LIGHT ON VIA THE DIMMER SWITCH ON THE TOP PART OF THE HEADLIGHT SWITCH, THEN BOTH GAUGES WORK FINE UNTIL I CLOSE THE DRIVERS DOOR.OF COURSE THIS ALL TAKES PLACE WITH IGN. ON . ITHINK IMAY HAVE A GROUND ON THE WRONG CIRCUIT.IS THAT POSSIBLE?I KNOW SOME STUFF ABOUT WIRING, BUT DO THE INTERIOR LIGHTS AND ENGINE GAUGES USE DIFFERENT GROUND SOURCES?

 

I FOUND MY PROBLEM TODAY. I HAD NO GROUND ON HEADLIGHT SWITCH OR THE FUEL&VOLTAGE GAUGES.INSTEAD THE GROUND WIRES WERE ALL CONNECTED TOGETHER INSTEAD OF TO GROUND.(HOW I MANAGED TO DO THAT,I'LL NEVER KNOW),BUT EVERYONE THAT IS FAMILIAR WITH CARLOS MENCIA I THINK WILL AGREE, THAT DESERVES A DEE TA DEE AWARD