Thread: Gauge for aux fuel tank

I am not familiar with the TD5 setup, but I understand that it has an in-tank fuel pump, so you would need one of them as well. As with any diesel there is also a return fuel line to consider, with the need for this to be switched as well (there are other ways round it).

As far as the gauge goes, I can see no reason why you could not use an identical tank sender and a two way switch (you may want to have additional poles on it to switch the low fuel warning light and fuel pump as well, but you need to know whether this will interfer with any ECU functions.

Alternatively there is no reason for not using a completely separate gauge system, which then need not be identical to the existing one. (This is what I have, but it is not a TD5)

John

I have an LRA sill tank on my Defender ('95) and the original fuel gauge can be switched to read either. It uses a relay, i did work out the circuit many years ago but not sure if I've still got the details.
On mine the fuel is lifted from the sill tank into the main tank.


Colin