Fuel computer

[g.s.john]

I have recently fitted a GSA tank to my 07 GS,
the fuel strip is working but the computer is still calculating for a 20 ltr tank.
Can the computer be re-calibrated?

 

[Deleted account 190920001]

Not sure if the dealer can but I am pretty sure there is nothing you can do.

 

[Bendy toy]

You'd have to do as I'm always told - use the trip.

 

[g.s.john]

I already do

 

[Boshman]

I have recently put a GSA tank on my 2011 GS. I have the same thing, distance to empty still calibrated to 20L tank so reports a max Range around 140 miles. however once it gets down to the 35 miles range remaining and the low fuel warning light come on, it gives a pretty accurate reading and when I have filled up with the range reading zero miles, I have got just over 33L of fuel in the tank.

I spoke to the deal who said it cant be changed as its fixed in the ECU and cant be reprogrammed, well not by them anyway.

I should also say mine has the float gauge not the strip sender, so it's pretty trustworthy but yes, I do also reset the trip when I refuel!

 

[kevingambrell]

Is it possible to use an adventure ECU ?

 

[Deleted account 190920001]

Is it possible to use an adventure ECU ?

Only if you like big bills. Everything is paired to everything else and won't accept a stranger. Key coding and all that stuff would need done as well. The dealer can put everything back together but they used to be loathed to do it with second hand kit. This might have changed now as the Hexhead isn't exactly new anymore and some cash is better than nothing.

 

[Bear]

The GS-911 includes a facility to calibrate fuel strips. How well it works with a GS strip and GSA tank I can't say. At the risk of hijacking the thread, does anyone know of a way of calibrating a float fuel sensor as my gauge (2010 GS) is reading about 3 litres low.

 

[Bendy toy]

The trip computer will probably work with the GSA tank and sender though the fuel strip will fail (they always do). The issues are likely to be the range remaining values will be wrong so you are likely to have it screaming for more fuel once the tank is more than 2/3 empty. Later bikes with a float gauge don't show any fuel level until the tank is 1/2 empty then they count down normally. At some point the fuel pump duty cycle will power up as it does on the fuel strip bikes.

My bike now has no fuel strip and an entirely separate fuel gauge. The OEM fuel gauge and fuel range remaining don't work, but they've not worked since the fuel strip packed up so no real loss. MPG works fine and the trip along with the fuel gauge keep me running.

The low fuel warning triangle can be spoofed with resistors (search advrider.com for details). It might even be possible to construct a resistor bridge that allows my 10 to 180 Ohm gauge to drive the OEM fuel management system. I would need a working fuel strip (to measure the resistance values) to find out if that's possible.

When the tank is full, the fuel pump controller runs the pump on low power (wide mark/space ratio). When the tank reaches about 1/3 remaining the controller switched the pump to high power (close mark/space ratio or maybe even continuous running). This reduces were and tear on the pump but as levels drop maintains enough flow to suck fuel from the tank right hand side to the left.

 

[Boshman]

The GS-911 includes a facility to calibrate fuel strips. How well it works with a GS strip and GSA tank I can't say. At the risk of hijacking the thread, does anyone know of a way of calibrating a float fuel sensor as my gauge (2010 GS) is reading about 3 litres low.

It's possible that the metal bar the float is on is bent out of position giving the wrong level reading!? It's basically a shaped piece of wire about the same thickness as a wire coat-hanger with the float on the end. Could easily be bent out of shape during fitting!

 

[g.s.john]

The trip computer will probably work with the GSA tank and sender though the fuel strip will fail (they always do). The issues are likely to be the range remaining values will be wrong so you are likely to have it screaming for more fuel once the tank is more than 2/3 empty. Later bikes with a float gauge don't show any fuel level until the tank is 1/2 empty then they count down normally. At some point the fuel pump duty cycle will power up as it does on the fuel strip bikes.

My bike now has no fuel strip and an entirely separate fuel gauge. The OEM fuel gauge and fuel range remaining don't work, but they've not worked since the fuel strip packed up so no real loss. MPG works fine and the trip along with the fuel gauge keep me running.

The low fuel warning triangle can be spoofed with resistors (search advrider.com for details). It might even be possible to construct a resistor bridge that allows my 10 to 180 Ohm gauge to drive the OEM fuel management system. I would need a working fuel strip (to measure the resistance values) to find out if that's possible.

When the tank is full, the fuel pump controller runs the pump on low power (wide mark/space ratio). When the tank reaches about 1/3 remaining the controller switched the pump to high power (close mark/space ratio or maybe even continuous running). This reduces were and tear on the pump but as levels drop maintains enough flow to suck fuel from the tank right hand side to the left.

From a full tank it works normally showing range once it get to what would be on empty the fuel gauge goes blank then after about ten miles two bars appear on the display and it shows 50 miles range run that to empty and i still have another fifty miles i have done 310 miles for 29 litres, so 300 miles is a good range with a decent reserve.