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libbor Banned for bullying.
Joined: 01 Feb 2009 Posts: 1341 Location: Ghoulbon
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Posted: Fri Feb 19, 2010 7:59 pm Post subject: Fuel Gauge Reading backwards |
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As you can probably tell, "Cecil" is finally on the road.
I am having one electrical hitch -
I have a black face kilometre speedo fitted with its matching black fuel gauge. I have what I thought was the correct sender unit also.
the way I see it, the gold fuel gauge has the bulky aluminium sender and the black face has the more modern looking sender unit.
As soon as i turn the ignition on, the gauge goes to full which is wrong because the tank is actually empty. If I disconnect the sender the gauge stays on empty.
It seems that the sender is reading backwards. Has anyone experienced this before. Also has anyone got the black face stuff fitted.
I cant believe it, i've wired the whole car and a fuel gauge stuffs me around
All help would be greatly appreciated.
Thanks
Libbor,
P.s Ill post up some pictures when its done
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grant69 moderator
Joined: 27 Jan 2004 Posts: 2796 Location: Cairns Nth Qld
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Posted: Fri Feb 19, 2010 8:31 pm Post subject: |
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Sounds like you have a old sender with new gauge.
The black speedo has a capacitance style gauge, requiring a capacitance sender, if your sender is resistive ie has a wire coil, the easiest fix is to swap the old gold gauge out a change the black face which is what I have done.
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Kustombruce valued contributor
Joined: 09 Sep 2003 Posts: 603 Location: Canberra, where they put creative spirit in the water
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Posted: Fri Feb 19, 2010 9:47 pm Post subject: |
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Libbor
I have a few spare speedo heads under the house Black and gold, I will bring them over in the morning, we can have a play
Bruce
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libbor Banned for bullying.
Joined: 01 Feb 2009 Posts: 1341 Location: Ghoulbon
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Posted: Fri Feb 19, 2010 10:11 pm Post subject: |
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Thanks mate
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frosty moderator
Joined: 23 Dec 2003 Posts: 3829 Location: 4559 near a big pineapple, Qld
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Posted: Sat Feb 20, 2010 12:18 pm Post subject: |
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The corolla intank sender won't work with the english guage.
I had a in tank sender unit made up from a VDO unit that had the correct 'black magic' gizmo's that Grant is talking about, attached to the Toyota unit for my EFI setup. Works a treat - although I am using another English (not Morry) fuel guage.
If you have an Instrument Repair place in Canberra then I would go and have a chat with them and taking the guage that you really want to use with you so they can hook it up and test what sender unit is required.
I will venture into the 'black hole' and try and find it and take a pic for you.
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grant69 moderator
Joined: 27 Jan 2004 Posts: 2796 Location: Cairns Nth Qld
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Posted: Sat Feb 20, 2010 12:54 pm Post subject: |
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if you have a corolla sender, VDO make a replacement round gauge to suit the corolla
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libbor Banned for bullying.
Joined: 01 Feb 2009 Posts: 1341 Location: Ghoulbon
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Posted: Sat Feb 20, 2010 1:49 pm Post subject: |
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hi, I dont have the corolla sender any more. I do want to use the black face fuel gauge, ( the one that has the voltage regulator attached to the back of the speedo.
Libbor
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grant69 moderator
Joined: 27 Jan 2004 Posts: 2796 Location: Cairns Nth Qld
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Posted: Sat Feb 20, 2010 1:55 pm Post subject: |
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plug in a gold face gauge and if that works ok, remove it from the the speedo drill out the rivets and remove the face (you can do this without damaging the needle) do the same for the black face and attach it with some super glue or araldite, or peen the rivets back over
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libbor Banned for bullying.
Joined: 01 Feb 2009 Posts: 1341 Location: Ghoulbon
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Posted: Sat Feb 20, 2010 2:30 pm Post subject: |
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does that need a voltage regulator or does it work off straight 12 volts. I know the black face gauge only requires 10 volts.
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grant69 moderator
Joined: 27 Jan 2004 Posts: 2796 Location: Cairns Nth Qld
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Posted: Sat Feb 20, 2010 3:00 pm Post subject: |
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The voltage regulator does not need to be used it is more a filter, to keep stray noise from affecting the capacitance
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libbor Banned for bullying.
Joined: 01 Feb 2009 Posts: 1341 Location: Ghoulbon
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Posted: Mon Feb 22, 2010 12:34 pm Post subject: |
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Hi
All sorted
What I did was to bend the arm the opposite way. And then adjusted it to read full when full
thanks for all your help
Darren
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grumpy Happy to be Grumpy
Joined: 19 May 2006 Posts: 79
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Posted: Mon Feb 22, 2010 3:06 pm Post subject: |
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G'day all
I am having trouble trying to work out what the voltage regulater has got to do with the fuel gauge. Are you sure that your not talking about the voltage stablizer?
regards Grumpy.
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grant69 moderator
Joined: 27 Jan 2004 Posts: 2796 Location: Cairns Nth Qld
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Posted: Mon Feb 22, 2010 3:10 pm Post subject: |
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Yes it is a voltage "stabilizer" or filter not a regulator
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