Electrical Question, Fuel Gauge reading jumps with lights on... |
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Electrical Question, Fuel Gauge reading jumps with lights on... |
jim_hoyland |
Sep 1 2014, 09:03 AM
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#1
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Get that VIN ? Group: Members Posts: 9,309 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
This has been bugging me for several years; every time the light switch is "ON", the fuel gauge level jumps up almost 1/4 tank.
I have a Getty 5 gauge dash: Clock, Speedo, Tach, Oil Press/Temp, and Fuel/Voltmeter. All the gauges share a common ground and common voltage source for the gauge lights; I'm wondering whether one or both need to be isolated to prevent the interference? Need some electriccal input here... (IMG:style_emoticons/default/smile.gif) |
904svo |
Sep 1 2014, 12:36 PM
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#2
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904SVO Group: Members Posts: 1,118 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
When I put a Subby in my kit car I ran inti the same problem, it turn out to be the
battery lead from the fuse to the battery was dirty. I fix my problem by running another battery lead to the fuse block and supplying battery to the gas gauge. The real problem is the voltage drop from the battery to the fuse block when the headlights are turn on. |
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