2005 Seafarer help with wiring

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vicpinto

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Seafarer
I'm in the process of installing an aux tank in my 2005 Seafarer 228 and spend an hour tracing the sender wires back to the dash. I'm curious about this pink wire. At first I though it was one of the 2 sender wire but after doing a continuity check this wire is not for any of the 2 senders. The pink and pink/white sender units run through the connector I identified with my finger and continue up into the dash. Pink goes to Yamaha gauge and pink/white is behind switch panel - spaded but not connected to anything yet. The wire I'm curious about is further down the main harness (blue arrow).
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Wire goes to a spade terminal and then continues to another spade terminal (long since corroded away but circled in blue. This wire was tucked inside the factory wire loom. Can anyone shed some light on what this pink wire is for? I see pink and I think fuel. I also admit this wire could have been red and faded to pink over time. Hard to tell.
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Any insight is appreciated.
 
Pink is the main tank sender. Pink/White I think is the sender wire for the AUX tank if that is equipped.
Both wires if two tanks, go to a switch to the helm that selects which signal to send to the fuel gauge. If you have one tank, the second sender wire is not used. Neither is the selector switch at the dask (probably not there at all)
 
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Per the owner's manual, it appears that the single pink wire is for the main fuel tank sender, whereas the pink/white wire is for the auxiliary fuel sender. Which I imagine is what you're trying to determine as to where the auxiliary tank sending wire is? It would also make sense to me that it was tucked away in the original wire loom and not used, as it's an auxiliary tank that not all boats came with, and they probably did it that way on boats that didn't come with the auxiliary tank. The wiring section is on page 6-9 of the owner's manual, which is linked below.

 
I wanted a more accurate reading of the fuel tanks on my 228, and installed two separate gauges with a wide sweep. With this setup, pink goes to one gauge, ping/white to the other. Bought the gauges on Amazon.

Gauges.JPG
 
Come on guys. Did any of you actually read the original post? I stated I know where the main tank pink and aux tank pink/white wires are and where they're going - pink connects to gauge and pink/white is tucked away behind switch panel.. That's not the issue. The issue is the additional (second pink) wire I discovered inside the wire loom. It has no continuity with either sender and its not connected to anything as can be seen in the photo.
 
vicpinto said:
Come on guys. Did any of you actually read the original post? I stated I know where the main tank pink and aux tank pink/white wires are and where they're going - pink connects to gauge and pink/white is tucked away behind switch panel.. That's not the issue. The issue is the additional (second pink) wire I discovered inside the wire loom. It has no continuity with either sender and its not connected to anything as can be seen in the photo.
Click to expand...
If your boat came with one fuel tank, it should only have one fuel sender. An additional sender could be for the fresh water tank.
If your boat came pre wired for a second tank, search the general tank area and look for two wires. One a ground, the other your pink/white.
 
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