2014 version .. Fuel pump not priming

[cbcanada]

Hello all i am a new member,

I wanted to start a new thread on a well covered topic. Mostly because cycleworks discontinued the replacement harness for the fuel pump

My bike ran out of gas las week. I pushed her to station filled up. The next few rides had i had intermittent starting problems

Now my bike will not start and I do not hear the fuel pump priming

I have checked everything including power going into the fuel pump from outside the tank

Of the four electrical cables going into the tank The white cable going into the tank has power when the key is in the ON position and the red cable in the photo has power no power in the ON position BUT when I hit the start button it does send power. The 2 black cables carry no load so I assume they are both ground.

I am assuming this is all proper and correct so this leads me to believe all my issues are inside the tank.

Broken pump
Or
Broken wire.

Through my research I found out that cycle works used to do a harness that replaced the OEM but no longer make it.

So I wanted to know what my replacement options were if in fact it was a wiring problem?

Also I am not the world's most handiest guy but I don't mind getting my hands dirty

I will have a lot of questions so I wanted this to be a thread for

"the real idiots guide to fixing your fuel pump issues"

I will hope to video my work and put it on YouTube for all to see for those that have future problems

If anybody has any tips or knows what I can use as a wiring harness please start chiming in I appreciate all responses

[cbcanada]

Update..

I took the pump/flange assembly out and hard wired 12v from the battery to the back of the connector going into the pump.. The pump turned on, did it again just to make sure. And i heard her buzzing.. :-) i guys the pump is good?

So now i have to go backwards and find where the break in the line is

[ducpainter]

The pump wire...red...will only be live during the priming cycle after turning the key on.

If you had voltage at the red wire during cranking it sounds like the issue is something other than a broken wire.

I'm not sure if the current models are supposed to operate the pump during cranking or not, but none of the efi models operate the pump after priming if the engine isn't running AFAIK.

[Speeddog]

If your bike is a 2014 model, it's a warranty repair.

Assuming you're in the US, AFAIK, if it's less than 5 years old, it's also a warranty repair as it's an emissions system component.

Failing either of those, I've been told that the wiring passthrough part is now available from Ducati.

[cbcanada]

If your bike is a 2014 model, it's a warranty repair.

Assuming you're in the US, AFAIK, if it's less than 5 years old, it's also a warranty repair as it's an emissions system component.

Failing either of those, I've been told that the wiring passthrough part is now available from Ducati.

No it is not 2014 model I just chose that title because the problem is occurring in the year 2014 so I wanted to give anybody who does a Google search a recent update of this issue

my bike is a 2005 as to our 800

[cbcanada]

Update

I have confirmed that the problem is a break in the 12v line somewhere between the out side of the flange and where it actually connects to the pump.

I figured this out by

Running 12v direct to pump and connecting the ground cable from the out side of the flange connection. Result pump runs

But

If i connect the ground direct to the back of the pump and run the 12 from outside the flange.. Pump does not run.

So now most of the 12v wire is inside a plastic casing.. How to find the break

Here is some pictures


This first one is the flange exterior which sits outside the tank and seals the gasoline.  The red cable you see is the problem



This here is where it connects to the pump



And here is the whole you unit as it sits inside the gas tank.  You can see most of the red wire is inside the black plastic part




"If i was educated, I'd be a damn fool"

[cbcanada]

UpdAte

If I wiggle the 12v wire the pump works no problem

I am tempted to just put it back but I know the first bump that I go over the loose connection will come off again

I just don't know how to get in there to secure the connection

[cbcanada]

As it stands now. I need to figure out how to get to wires and past the black plastic casing

What purpose does the black plastic casing serve there's all kinds of holes in it so the gas does go in there .. So then what function does it serve?

[Speeddog]

The large black plastic part holds all of the components.

You have to carefully remove the push-nuts that hold the components to it, then the ones that hold it to the metal flange.

I've not heard of a successful repair of the wire pass-thru.
So replacement is the way to go, IMO.

[cbcanada]

Well if i have to replace it. Here is what i am going to do.

Update

After determining the black plastic case serves no purpose other than holding the components together and forcing Ducati owners to buy complete units I have decided to break a window on the side of it. To see what i can do

This gives me access to the problem area






"If i was educated, I'd be a damn fool"

[cbcanada]

Last post for the day..

I will most likely continue this wednesday or next sunday. Here is my plan

1.  Clean up the  area i cut with a dremmel.

2. See if i can drill through the epoxy thats holding the wires.

3. Runs a new wire through, fill the drill hole up with in weld or caswell.

4. Clean up the whole unit to make sure no loose plastic bits.. And put back together

Here is how things look now..
If anyone can chime in with ideas.. i would REALLY appreciate it.

[cbcanada]

Gotta admit.. Pretty nervous about breaking a window in that plastic housing

[Speeddog]

Gotta admit.. Pretty nervous about breaking a window in that plastic housing

As you should be.
Because you can't buy that part seperately.

[cbcanada]

Just thought of something .

The pump is working fine right now.. The only thing i poked around and physically moved was when i proved the back of the external connector...

WHAT IF it is this piece all along



There is noway i can determine that right now because the pump is working

[stopintime]

Don't know if this helps, but Chris suggests getting the parts from an Aprilia fuel flange ...

http://www.ducatimonsterforum.org/index.php?topic=61306.0