OEM Subtank

[pkelly72]

Quick update - larger fuel pickup opened and smaller one welded shut. Ordered the gaskets - thanks @cruiserdan

Question though, has anyone used the factory fuel switch without using the sending/fuel cut off feature? I’m just looking for On/Off and illumination when the key is on.

 

[Cruzilla]

I opened up the Sub tank switch, removed the face and transferred it to a Hazard switch IIRC
Works great to control a relay that turns on the fuel pump!

 

[alia176]

Used to be that my bladder could outlast both of my fuel tanks. Now, not so much

 

[LandCruiserPhil]

Quick update - larger fuel pickup opened and smaller one welded shut. Ordered the gaskets - thanks @cruiserdan

Question though, has anyone used the factory fuel switch without using the sending/fuel cut off feature? I’m just looking for On/Off and illumination when the key is on.

There are actually two "SUB" tank switches one momentary contact and one positive on-off

I can tell you finding a positive on-off is much harder to find. You can use the momentary switch but it will be much more involved than an on-off.

Momentary switch on the right

 

[pkelly72]

There are actually two "SUB" tank switches one momentary contact and one positive on-off

I can tell you finding a positive on-off is much harder to find. You can use the momentary switch but it will be much more involved than an on-off.

Momentary switch on the right

View attachment 1897346View attachment 1897347

Not home now but 90% sure I have switch on the right. I like idea of using hazard switch but I’ve never torn one apart

 

[LandCruiserPhil]

Not home now but 90% sure I have switch on the right. I like idea of using hazard switch but I’ve never torn one apart

There is a post for a aftermarket pigtail for the factory SUB switch if you go that route.

 

[pkelly72]

There is a post for a aftermarket pigtail for the factory SUB switch if you go that route.

Got a link? I’m driving which seems safe

 

[LandCruiserPhil]

Got a link? I’m driving which seems safe

Sorry I dont but when you find it post it here so maybe I can find later

 

[pkelly72]

Sorry I dont but when you find it post it here so maybe I can find later

Can’t seem to find the flipoff

 

[TomH]

On/Off switch available on Partsouq.

 

[TomH]

This should be the correct connector from Eastern Beaver.

Original Japanese Made Sumitomo HM090 And MT090 Connectors

 

[LandCruiserPhil]

This should be the correct connector from Eastern Beaver.

Original Japanese Made Sumitomo HM090 And MT090 Connectors

View attachment 1897451

Thank you

 

[pkelly72]

This should be the correct connector from Eastern Beaver.

Original Japanese Made Sumitomo HM090 And MT090 Connectors

View attachment 1897451

I placed my order for it about a week ago. My question is what pins need to be used if I only use a fuel relay?

 

[TomH]

This is how I wired mine. I used a buzzer to let me know when the tank is empty so I can turn the switch off.

 

[80Nomad]

This is how I wired mine. I used a buzzer to let me know when the tank is empty so I can turn the switch off.

View attachment 1897488

Thanks for the wiring diagram, just what I was looking for as couldn't figure out if the brown wire was +12v or ground.

Where would be the best place to ground it?

 

[TomH]

Thanks for the wiring diagram, just what I was looking for as couldn't figure out if the brown wire was +12v or ground.

Where would be the best place to ground it?

Pretty sure I used the stock ground (BG) at the rear cross member.