Fuel Sender wiring

Griffdowg · Aug 2, 2009

Got the TD5 tank into the rear of my 90 today

got it to pump and everything

Only problem is the sender is not registering anything

So is it as simple as 1 wire to gauge other to earth, then on the gauge the one is a live feed? I have replicated the wire placement of that on my existing gauge and used a "quick connect" thingy to take the + feed. maybe it didnt splice properly?

can anyone else thing of anything I did wrong? Not had a great fiddle. worn out from lifting tank, cradle and tank guard all in place at the same time!

Cheers,

G

Shifty1962 · Aug 2, 2009

Griffdowg said:
Got the TD5 tank into the rear of my 90 today got it to pump and everything

Only problem is the sender is not registering anything So is it as simple as 1 wire to gauge other to earth, then on the gauge the one is a live feed? I have replicated the wire placement of that on my existing gauge and used a "quick connect" thingy to take the + feed. maybe it didnt splice properly?

can anyone else thing of anything I did wrong? Not had a great fiddle. worn out from lifting tank, cradle and tank guard all in place at the same time!

Cheers,

G

These might help. Looks like the fuel sender is wired as you expected.
I'm not 100% sure though.

Griffdowg · Aug 2, 2009

bollix. Sorry shifty should have said. the sender is an earlier (late 300tdi) unit not the TD5 sender/ HP pump. It will have the same connection as a standard sender. The PO siliconed ontop of the wires to prevent moisture ingress so i assumed he wired it correctly. Have dropped him a mail, but as i said, i cant see where I have gone wrong really. must be something loose or maybe a duff gauge. trial and error tomorrow night I reckon.

Cheers,

G

Griffdowg · Aug 3, 2009

well I trial and errored the gauge tonight. Its reading, but the gauge goes to full when I know there is only about 5 litres in it

any thoughts anyone? running the sender to the original gauge shows its fine but running the original sender to the new gauge it goes off the scale again.

is there much to go wrong with the actual gauge itself?

any thoughts appreciated. damn thing

G

Shifty1962 · Aug 3, 2009

What gauge you using?
Maybe the sender and gauge are not compatible?
Cant think of anything else to cause the problem.
Maybe you need to get another gauge like your original one?

Griffdowg · Aug 3, 2009

ITs the standard defender gauge. its the same as original. I think, from reading about that if the gauge swings all the way to the right. its earthed ok and its getting the live feed but the sender wire is not transmitting signal (resistance). so maybe i have a fault at the tank end. Will have to give it a wiggle and see what happens

another day another dollar!

G

defenderdavie · Aug 3, 2009

griff ive got a 1984 90 and i ignore the fuel gauge completly and try to keep it as full as poss

Griffdowg · Aug 3, 2009

defenderdavie said:
griff ive got a 1984 90 and i ignore the fuel gauge completly and try to keep it as full as poss

thats not much use davie! Twin tanks and not knowing how much is in the rear tank :doh: I will sort it somehow.

G

Fuel Sender wiring

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