I have a fuel gauge that is mismatched to the sending unit on a hotrod. It is ready about twice the fuel it should, so I put together a voltage divider using a dual cement 5 watt resistor. The center or common leg goes to the fuel gauge +terminal, one of the legs goes to the 12v lead, and one of the legs goes to ground. The thing works perfectly except that the resistor gets hot as heck, and if I leave it on will burn the resistor up.
The resistor I am using is a dual .22 Ohm. I re-purposed it out of an Onkyo/Integra that was busted. The actual resistance is exactly .218 and .217 Ohms as measured on my micro-ohmeter.
The Red wire=12VDC, white/red wire is the 6VDC, black wire GND.
The resistor I am using is a dual .22 Ohm. I re-purposed it out of an Onkyo/Integra that was busted. The actual resistance is exactly .218 and .217 Ohms as measured on my micro-ohmeter.
The Red wire=12VDC, white/red wire is the 6VDC, black wire GND.