| — no has to come from ign or acc switch as they only read when that is on . look at print follow wire back to source from gauge regulator . I doubt it is that wire , they don’t suddenly get loose , but pc pins sure do yes —feed to regulator from car is 12 v , you said feed to gas gauge which is pulsating 12 v , from the mechanical regulator points .Feeds all three gauges - if you have 3 ? averages out to 5 v . they do that so gauges are not impacted by battery volts I agree with loose pins in pc card , I was thinking 60 F same circuit but no PC . PC cards in 67 Dart and Barracuda i have both had bad connections on board at plug pins . I soldered them all . tricky .Have to clean really spotless shiny with box cutter tip or solder will not “take ” factory only held pins by expanding them like a rivet , you wiggle plug they all get loose . lSent from my iPhone On Oct 7, 2023, at 5:27 PM, dave mason <forwardlook300@xxxxxxxxx> wrote:
Hi John,
I may be remembering wrong but I thought the gas gauge for 63-64 is fed with 12V from the 5-pin connector on circuit board. Then it uses “points” to reduce to 5.5V or so. That then feeds temp gauge too. So I believe there is actually 12V going to the circuit board feeding the fuel gauge. It’s true that if that ain’t working, the temp gauge wouldn’t either. Ground sender wire for temp gauge and see what happens, as you say. Where does the 12V come from that feeds the 5-pin connector and therefore the instrument circuit boards? I think it may come from the headlight switch… Carl?
V/r Dave Sent from my iPhone On Oct 7, 2023, at 16:58, John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
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