Jump to content


Photo
- - - - -

Centre Speedo Fuel Gauge Wiring


Best Answer Icey , 08 June 2015 - 08:54 PM

Yes, you've got it.

 

You also use the same 10v output from the stabilizer for the temperature gauge.

Go to the full post


  • Please log in to reply
6 replies to this topic

#1 RossKnight

RossKnight

    One heck of a member

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,539 posts
  • Location: Hampshire or Surrey
  • Local Club: JKSA MOC

Posted 08 June 2015 - 08:26 PM

I've got the minispares loom wiring for going from a 2/3 clock to a center clock, everything works fine except I never wired up the fuel gauge, as I never understood how the voltage stabilizer works, is anyone able to shed some light on how to wire it in?

 

 

I've got two connections for 'i' and two connections for 'b', seems like I need a switched 12v supply to go to the 'b' connection, would this be okay to use the original white cable from the loom which is the switched power for the speedo? and then do I just need to connect the fuel gauge wire from the loom which I believe is green/black to the 'i' connection? what happens about earthing it etc?

 

made a nice easy diagram. you can change it if it needs correcting as it'll be much easier for me just to follow the diagram haha

8V3KDMg.png

 

Thanks, would be nice to finally have a fuel gauge.



#2 Icey

Icey

    Camshaft & Stage Two Head

  • Traders
  • PipPipPipPipPipPipPipPip
  • 1,551 posts
  • Location: Wiltshire

Posted 08 June 2015 - 08:31 PM

The voltage stabilizer basically drops the voltage to ~10v. Think of it as skimming the top off the voltage so it cuts out all the wobbles caused by engine speed changes, electrical load changes etc...

 

You put 12v in one side of it and out of the other you get ~10v.

 

You take that 10v output and you run it into the fuel level sensor. The output from that goes to your gauge and the 2nd connection from the gauge goes to -ve/gnd.

 

It's that simple. 12v > Stabilizer > 10v > Sensor > Gauge > 0v/Gnd



#3 RossKnight

RossKnight

    One heck of a member

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,539 posts
  • Location: Hampshire or Surrey
  • Local Club: JKSA MOC

Posted 08 June 2015 - 08:36 PM

The voltage stabilizer basically drops the voltage to ~10v. Think of it as skimming the top off the voltage so it cuts out all the wobbles caused by engine speed changes, electrical load changes etc...

 

You put 12v in one side of it and out of the other you get ~10v.

 

You take that 10v output and you run it into the fuel level sensor. The output from that goes to your gauge and the 2nd connection from the gauge goes to -ve/gnd.

 

It's that simple. 12v > Stabilizer > 10v > Sensor > Gauge > 0v/Gnd

 

That makes sense, I think I was getting confused with the fuel gauge wire, and the fuel sender wire, as i've effectively got two looms to work with and the loom conversion sadly didn't match up with all the colours so it wasn't a straight plug and play.



#4 Icey

Icey

    Camshaft & Stage Two Head

  • Traders
  • PipPipPipPipPipPipPipPip
  • 1,551 posts
  • Location: Wiltshire

Posted 08 June 2015 - 08:42 PM

Sorry - slight correction. Swap the sensor and gauge around.

 

12v > Stabilizer > 10v > Gauge > Sensor > 0v/Gnd



#5 RossKnight

RossKnight

    One heck of a member

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,539 posts
  • Location: Hampshire or Surrey
  • Local Club: JKSA MOC

Posted 08 June 2015 - 08:50 PM

Not going to lie, this is still confusing me haha. I'm not great with elecktrickery.

 

 

I get that the stabilizer will output a 10v connection, so will I then need to connect a wire from 10v to one of the fuel gauge terminals, and then the green/black wire to the other terminal on the fuel gauge, as i assume this goes all the way back to the fuel sender? And the fuel sender is already earthed as I checked earlier.



#6 Icey

Icey

    Camshaft & Stage Two Head

  • Traders
  • PipPipPipPipPipPipPipPip
  • 1,551 posts
  • Location: Wiltshire

Posted 08 June 2015 - 08:54 PM   Best Answer

Yes, you've got it.

 

You also use the same 10v output from the stabilizer for the temperature gauge.



#7 RossKnight

RossKnight

    One heck of a member

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,539 posts
  • Location: Hampshire or Surrey
  • Local Club: JKSA MOC

Posted 08 June 2015 - 09:33 PM

Yes, you've got it.

 

You also use the same 10v output from the stabilizer for the temperature gauge.

 

All sorted out in the dark haha. Turns out where i'd just assumed white from the old loom would connect to the white wire on the minispares loom was wrong, the stabilizer is now getting switched 12v and I have a working fuel gauge, wahey.

 

I got a Tim temperature gauge, will this work with the wiring and sender that's already present? As the sender I got with the kit is tiny and won't fit in the block, I know it probably won't be accurate, but as long as I can find out whats normal on the gauge i will be able to tell when it gets hotter






1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users