Re: Fuel gauge at 9:00, doesn't move
Yep, bad gauge, or the stops were not installed.
90 ohms = full
45 ohms = half
22-25 ohms = 1/4 tank
11-14 ohms = 1/8 tank.
All are approximate indications.
You next gauge you can bench test with battery power and two 45 ohm resistors.
Resistors in series = full
One resistor = half
Both resistors tied together in parallel = 1/4 tank.
Or two 50 ohms resistors, more 'stock' size.
Pink = power from the fuse panel - same power for BRAKE light, GEN light, OIL light.
Black = ground, same gauge lamp ground and turn signal indicator ground also.
Tan = sending unit.
My schematic does not show LOW FUEL, so, you're on your own.
You might remove the resistor and see what the gauge indicates.
If battery voltage on pink wire, then battery voltage should be on tan wire. Sending unit determines the current flow thus the indicating level, lower level/resistance, more current; more resistance, less current. It will be milliamperes because of the size of coil in gauge.
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Last edited by Everett#2390; Jun 2nd, 10 at 03:39 AM.