fuel sender conversion ?

[stevieturbo]

IS it possible to convert a fuel sender that reads 10ohm full, 65ohm empty to give an output of 10ohm full and 135 ohm empty easily ?

Ive changed my fuel gauge and would prefer not to have to buy a new sender. It's a VDO dip tube style.

Oddly a couple of sellers say these normally come low resistance empty and circa 90ohms full.

So mine must have been custom originally ( made to suit my OEM fuel gauge )

Ive since fitted different clocks and need 10-135 ohms.

[Jon K]

I don't know that there is an easy, reliable way to flip it.

We had to use a custom range on a setup and so we ended up using these guys - its awesome:

http://www.centroidproducts.com/

[mefmotorsport]

IS it possible to convert a fuel sender that reads 10ohm full, 65ohm empty to give an output of 10ohm full and 135 ohm empty easily ?

Ive changed my fuel gauge and would prefer not to have to buy a new sender. It's a VDO dip tube style.

Oddly a couple of sellers say these normally come low resistance empty and circa 90ohms full.

So mine must have been custom originally ( made to suit my OEM fuel gauge )

Ive since fitted different clocks and need 10-135 ohms.

There's no way you can extend the resistance range of such a sender. The only thing you can do is use a "pull-up" resistor between the sender and 5V then use the output voltage to calibrate a programmable gauge.

If you want to invert the voltage for full, just use a pull down resistor and the sender up to 5V so the table will work the opposite way.

Martin

[stevieturbo]

It isnt flipping it.

Just extending the range. Gauge is a basic affair. OEM gauge is referenced to 12v in the cluster.

I just need empty to be around 135 ohms now as opposed to 65 ohms previous. I have bodged it temporarily with resistors to give me an approx empty reading, but obviously the gauge doesnt show anything above half full now.

I dont mind buying a new sender, it's just none of those seem to come with the right scaling either.

UK/Euro seems to be 0 ohms full 90 ohms empty

US seems to be about 230ohms full and 60 empty I think. There is some sort of standard somewhere.

But the gauge I am using is not adjustable.

[Jon K]

Stevie check that link out they will scale it digitally however you need

[stevieturbo]

What link ?

[razzor]

What link ?

http://www.centroidproducts.com/

[mefmotorsport]

What link ?

http://www.centroidproducts.com/

[stevieturbo]

They certainly sound good....no pricing is worrying though lol

[Jon K]

Yeah I wish they'd list it - it wasn't too bad honestly. And its super accurate. No ghetto float on a stick, its got a like dipstick tube.