Question about 2000 Harley Davidson FLHT Electra Glide Standard

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No instructions to work with

I have a 2000 Electa Glide standard that I bought an oil temp gauge and an oil pressure gauge to place in the blank spots on the fairing. The oil pressure gauge did not come with instructions. (These are HD OEM parts from the local Harley dealer.) I have installed the gauge and plugged in the wiring already in place at the back of the guage in the fairing. I traced out the Green/Yellow wire from the sensor to the 140A and 140B plug assembly. I did not pull the wire from the plug for fear the tip would break off in the plug. My question is two part. 1. If I pull the one Gn/Y wire from the 140B plug, should it come out clean? 2. Since I'm swapping over from an idiot light to a gauge (I now have two wires to contend with. The second being a brown/green wire) do they simply plug in to the 140B plug assembly to complete the install?

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  • schurr1 Dec 31, 2008

    The Gn/Y wire that lead from what will be the old sensor will no longer be needed. I am interested in finding out if the new two wire harness that will be plugged in to the new sensor at one end plugs in to the 140B plug assy under the right side cover on the other end of the new harness? Also, if I yank on the old Gn/Y wire, will it come out clean or will I need to go purchase a new 140A/140B plug assy? Thanks,

    Dave

    Olalla, WA

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The gauge will be wired in series between a 12V supply and your new sensor. The idiot light ,also wired in series, just used a pressure switch for the sensor, instead of a transducer. Once you have swapped the sensor, and replaced the idiot light with the gauge, you should be able to use the existing wiring, unless the 140 A/B plugs have been pre-wired to your instrument clusters circuitboard. Just keep in mind this is a straight series circuit. It sounds as if the Gn/Y wire to your old sensor should remain in place as for routing, and just swapped over to the gauge/new plug and the other end of the Gn/Y wire connected to your new sensor.

Posted on Dec 31, 2008

  • Rob M Dec 31, 2008

    The wiring into the plug assembly can be removed, but most likely has a retaining mechanism that will prevent you from just yanking it out.

    I'm not familiar with the plug assembly #'s of Harleys, However, it should indicate 12V on a DMM on the 140B plug if that is where it needs to go.

  • Rob M Dec 31, 2008

    The wiring into the plug assembly can be removed, but most likely has a retaining mechanism that will prevent you from just yanking it out.

    I'm not familiar with the plug assembly #'s of Harleys, However, it should indicate 12V on a DMM on the 140B plug if that is where it needs to go.

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