Water if fuel sensor ?

[Topzide]

I was wondering how this works? Is it a continuity type sensor that when water is detected, it passes signal like a closed switch? Was looking at adding to my filtering on my transfer tank to help with water detection. Was thinking if it worked that way, could pass a ground which would light an LED on dash to alert me to issue or am I over thinking this and just keep using a water block filter? This was going to work along with the water block filter to help with the filtration for the truck fuel and tractors. All fuel for the truck goes through the transfer tank before needing in truck. Just want extra level of filtration for truck and for tractors. Thanks in advance for the help.

 

[bcbender]

I don't worry that much about it, the trucks have really good filtration and both have water traps (drains). To date I fill either or both tanks, no filter on the AUX tank, just gravity into the main. Knock on wood, no water ever found in the primary or secondary filter. I just use best practices when purchasing fuel and only get it from high volume reputable places and try to avoid those roadside stops that look sketchy.

 

[AH64ID]

It measures resistance, so not like an open/closed switch. Not all WIF sensors use the same resistance either.

When I added the Mopar SDFK to my 05 I had to replace the engine mounted WIF sensor, and reprogram the ECM for the new sensors.

Stick with the water block but carry a spare.