Folks
While investigating why my fuse blows I checked the fuel gauge and float sender.
The float sender shows the correct resistance for most of the levels. However at the near full position the resistance fluctuates between 500-700 ohms. The spec is app 15 Ohms for full and 130 ohms for empty (or is it the other way?).
A question for the electronics experts;could the incorrect resistance be the cause of the fuse blowing?
too much resistance is never going to blow a fuse
0 ohms may
if you want to be sure your fuel gauge is not causing the problem, unpin it at the tank connector and use it for a while with no fuel gauge,
Good idea. ANy suggestion how this can be done (apart from cutting the wire) as the sensor wires and pump power go into a 3 prong connector (common, pump power, sensor).
I have removed the pump so could remove the active sensor wire (indicated by pen in pic below) . However, Im not real keen on disconnecting electrical wires inside a fuel tank! I dont know enough about this but the possibility of a short inside the tank wories me just a little..
Ive attached a couple of other pics for any others who are interested in what the pump and float look like. The fittting at the top is the variable resistor that sends the signal to the fuel gauge.
inside the white 3 pin connector the terminals are locked in position by a small catch,
you will see a small tab just next to the terminal inside the cnnector
with a fine pointed tool like a large needle or if you have then jewelers screwdrivers or a pic
lever the catch away from the terminal as you gently pull on the wire (black with green stripe)
the wire will come out easy when done correctly , you can try levering the catch without pulling first too see it move and confirm your doing it right
to reinstall just push it back in in the correct orientation, (cutout in the terminal towards the catch )
Most Suzuki connector terminals can be removed and reinstalled this way , the real important ones like the ecu connector on the gen 2 have an additional lock securing the latch (the orange end cover )
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