Fiat Ducato X250 2013 130hp fuel gauge problem

[Lucy the Laika]

I feel I have an issue with my fuel gauge, I last filled up and after approx 200 miles its still showing full, it does drop to zero with the ignition off. (Ducato 130hp X250 2013 lhd - I noticed the time before that I filled up the ltrs I put in surprised me).
I have had the dash off and unplugged and replugged the dash connector plug and still shows full when turned on.
Does the gauge have a sender ? Is it easy to find and check the connection to it?
Any ideas as to what the issue may be?
Thanks

 

[Landy Andy]

Have you had van from new?
Did it used to read differently?
What size tank has it got/how many litres can you get in it?

 

[TheBig1]

The sender unit in the top of the tank is basically a variable resistor and has a tendency to fail occasionally. Access is through a plate in the floor of the cab by UK side passenger seat

 

[Lenny HB]

The sender is under a hatch in the floor between the front seats. Worth checking all the connections before taking it out could be open circuit if it just reads full.

 

[Lucy the Laika]

Have you had van from new?
Did it used to read differently?
What size tank has it got/how many litres can you get in it?

Yeah had from new,over 7 years and 90000km's done and no previous fuel issues so i know the 'gauge/consumption' pretty well

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[Lucy the Laika]

The sender unit in the top of the tank is basically a variable resistor and has a tendency to fail occasionally. Access is through a plate in the floor of the cab by UK side passenger seat

Thanks, so does it look like a small tube then?

 

[Lucy the Laika]

The sender is under a hatch in the floor between the front seats. Worth checking all the connections before taking it out could be open circuit if it just reads full.

Thanks, do u know what it looks like?

 

[Landy Andy]

Sometimes the wires from the unit can get damaged as they are under the “squishy” bit of the floor when you walk between the seats.

 

[Lucy the Laika]

The sender unit in the top of the tank is basically a variable resistor and has a tendency to fail occasionally. Access is through a plate in the floor of the cab by UK side passenger seat

Apart from engine battery compartment the only other compartment leads to this circular black cover - is it under this?

 

[TheBig1]

looks slightly different to mine but yes it should be. Beside the passenger seat? As far as I remember there are a couple of access hatches in the floor. The fuel tank is under the passenger seat

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[Lucy the Laika]

Yeah this is next to my drivers seat and above the fuel tank cos its a left hand drive - will get into it and see what i find. Thanks

 

[Lucy the Laika]

Found it and all connections seem ok, guess i need an 'expert' now. But thanks for your help

 

[Leeh123]

Did you manage to find the fault I've got the same problem. Sent instrument cluster to cartronix sent back with no fault so not that

 

[Lucy the Laika]

Yep,needed a needed a new fuel level unit(the white plastic thing from photo earlier), got it done by Fiat in Spain so price wasn't to bad

 

[Leeh123]

The fuel sender in the tank ?

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[Lucy the Laika]

Yeah, the top of it is between the cab seats