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Thread: Making this gauge work (electrical knowledge help required!)

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    Forum User verified Feedback Score 4 (100%) Frostedbutts's Avatar
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    Making this gauge work (electrical knowledge help required!)

    I'm looking to get a new oil pressure gauge, and came upon this in another thread (Thanks JasonY):

    Automobile Multimeter for EGT, Boost, Amber [SYL-1813A] - $53.50 : auberins.com, Temperature control solutions for home and industry

    I've fallen in love with it and now I need to make it work. It says

    For water/oil pressure measurement, the meter can work with either old style resistive pressure sensor or the modern style pressure transducer with linear voltage output. The meter offers a regulated 5V DC output for the power supply of the pressure transducer.
    So assuming our cars use either of these outputs (I have no idea, can they?) all I need is to wire the gauge in with a power, ground, and signal wire. If I use the stock sending unit - which is my hope - which color wire is ground, power, and which is source?

    If our stock sender won't work, I had planned on using one of these senders and harness with an adapter, since it is so small in size.

    Replacement Elite Oil Pressure Sender Unit

    Could I then feed three wires from that (power, source, and ground) into the unit and make it work?


    tl;dr how do I make this beautiful piece of machinery work

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    The answer is resistance. You only hook up a wire from the gauge to the sensor. Power and ground get hooked to the gauge.

    -SP

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    Forum User verified Feedback Score 4 (100%) Frostedbutts's Avatar
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    Quote Originally Posted by speedy25 View Post
    The answer is resistance. You only hook up a wire from the gauge to the sensor. Power and ground get hooked to the gauge.

    -SP
    Thanks. Any idea which wire is the signal wire?

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