wiring aftermarket fuel gauge

Charging, starting, lighting, gauges, HVAC

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ima71 trucks are older
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Location: Washington (the dry part of the state)

wiring aftermarket fuel gauge

Post by ima71 trucks are older »

so when wiring in an aftermarket fuel gauge and powering the sender with the correct 6volt pulse, would you wire the gauge with 12volts and limit the output signal or limit the voltage feeding the gauge?

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Image
68 F100 soon to be on an 80's 4x4 frame and 300-4spd
69 F100 300-4spd
78 F150 300-3spdOD
kid

Post by kid »

2nd pict
ima71 trucks are older
New Member
New Member
Posts: 142
Joined: Tue Jul 10, 2007 10:39 pm
Location: Washington (the dry part of the state)

Post by ima71 trucks are older »

kid wrote:2nd pict
thanks
68 F100 soon to be on an 80's 4x4 frame and 300-4spd
69 F100 300-4spd
78 F150 300-3spdOD
kid

Post by kid »

A nasty military bomb trick wire twelve volts from the headlights to the fuel sending unit.

Though I left out the voltage regulator on a race truck and the gauge worked fine it just bounced all over the place when driving.

The voltage limiter averages out the 12 volts to six by sampling the current and holding it to a lower level. Since the gauge only sees power part of the time the sender swings gets averaged out.
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