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04-05-2021, 05:18 PM
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#1 |
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Moderator
  
Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Oil Pressure Gauge
I had a 73-87 oil pressure gauge install done on my gauge panel and dont get any pressure readings.
Some background: I have a known grounds bus bar I'm taking ground readings from. I have grounds at the gauge panel, ground continuity to the sender (PS154), engine block and gauge ground lead itself. I have 12V power to the gauge with power on. I have continuity from the gauge end sender wire to the sender (engine) end. I grounded the sender wire from the sender (engine end) the gauge went from zero to 1/4. Unplugged it the gauge went to zero (the bottom/left). Here is a pic of the back of my gauge. Could the sender wire and power wire be crossed? I did't want to move them yet as I was afraid to damage the gauge.
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