Fuel Gauge Sender Quit

[Breathless]

In a moment of stupid I made it necessary last year to replace my fuel pump. Online I found a supplier significantly cheaper than the others which on delivery of the pump turned out to be in China. I thought and still think it is a real YoMama part. Pump seemed fine and has worked perfectly for 10,000 miles.

A few thousand miles after install the fuel level being displayed got intermittent. Sometimes after startup it just displayed all bars, blinking on and off seven times, pause, repeat. Over time that became the norm. No, I don't still have the sender from my first pump. Any ideas on fixing this without buying another $650 fuel pump?

 

[st4gary]

I'd pick up a complete, used fule pump assembly off of Ebay. Looks like they generally run in the mid $100's.

 

[Breathless]

Thanks st4gary.

No sooner did I post my question than I found a long thread in a different forum. Brain fart at my house. Last time I was in the market there were none used. Thanks for heads-up. Now if I can just resolve my own heads-up difficulty....

 

[ionbeam]

When the sending unit is completely open or completely shorted the ECU is supposed to flash all of the bars on/off, all at once. Confirm that you don't have an intermittent connector connection or corrosion in the sender connector and verify that you have a solid reference voltage going to the sending unit connector.

If the voltage is present and at the correct voltage you are going to have to pull the pump. Once on the bench (floor, kitchen table) take a look at the red/black wires at the bottom of the sending unit and make sure they are intact and connected. Inspect the contact on the float arm and make sure it is in contact with the bars on the sending unit. You should be able to put your DMM on the wires at the base of the sending unit and verify if it is working or not. I recently posted pictures, for those that don't know what this thingie looks like I will see if I can find those pictures.

Ahh, found it. The following is a straight copy/paste from another thread where I posted it so it may not be completely in context with this thread.

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What's in the tank? Here is the fuel gauge:

The metal arm on the right side is the float arm. The semi circle with the red and black wires at the bottom is the resistor board that produces the varying voltage that the ECU converts into a fuel level.

This is the sending unit (resistor board). The float arm has a wiper that must contact the little silver conductors. As the float drops with the fuel level the wiper moves down the resistor network. The red and black wires have to be attached (DOH) and the board can have ZERO damage, such as scratches. The fuel pump is an assembly, the fuel sending unit can't be purchased separately. If you can find a complete pump assembly that is bad you can salvage the fuel sending assembly and transplant it.

You don't need your glasses or your eyes checked, the pictures are in fact blurry.

Edit: I see while I was posting this the OP had an epiphany and probably no longer needs to see this.

 

[moto1965]

i Have a 2005 fjr 1300a. Found this thread to late. Does anyone know if you can use another yr model fjr fuel pump comp fit/work 2005 fuel pump comp Part #5JW-13907-15-00? The reason why is you can buy a after market for a 06 or newer for 150.?

 

[Dan Cooper]

i Have a 2005 fjr 1300a. Found this thread to late. Does anyone know if you can use another yr model fjr fuel pump comp fit/work 2005 fuel pump comp Part #5JW-13907-15-00? The reason why is you can buy a after market for a 06 or newer for 150.?

Let me start by saying welcome to the circus!! Watch out for the clowns!!!

Now, you found a 12 year old thread to resurrect??!!
I recommend you start a new thread for help with whatever problem you're having.
Be sure to give it a meaningful title and describe the problem thoroughly.
Describe any troubleshooting steps you have already taken to isolate the problem.

But I'll take a guess at the problem and offer a couple of suggestions.
If you need a new fuel pump assembly, you can buy one of the cheap chinese fuel pumps from ebay or amazon.
Disassemble your old pump and the new pump and use the cap portion of the old pump housing with the 2 fuel nipples on the new fuel pump.

Or buy just a fuel pump motor and rebuild your existing fuel pump housing.
https://www.ebay.com/itm/3809161860...M6k90mcpilfsU9omMUZL6AOuPu|tkp:Bk9SR_br38usZQ

If you need only the fuel level sending unit with the float, you might take a chance with one of the cheap chinese fuel level sending units from ebay or amazon.
https://www.ebay.com/itm/296827433502

For some other reading.
https://www.fjrowners.com/threads/b...uel-pump.158419/?post_id=1366018#post-1366018


good luck
dan