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adding low fuel light?

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Old Feb 21, 2012 | 09:23 PM
  #1  
zenish's Avatar
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Joined: Dec 2000
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From: stallings,n.c.
Car: 1989 camaro rs convertable
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: 7.5"3.42 gears forth gen 2000 camar
adding low fuel light?

my buick has a low fuel light and id like to add one to my camaro.i wonder if theres a sending unit that will also fit a camaro that has the low fuel light built in?has anyone here done that?
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Old Feb 22, 2012 | 06:42 AM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: adding low fuel light?

Originally Posted by zenish
if theres a sending unit that will also fit a camaro that has the low fuel light built in?
Low fuel light is part of the dash; not the sender

"GM fuel sending units operate in a range between 0-90 ohms.
Zero ohms correlates to "empty" and 90 ohms correlates to "full
The low fuel light is energized when the sending unit provides a 10 ohm signal to the fuel gauge."


So you need to design some electronics to turn a light on at what ever Ohm value you wish
using the wire from the tank sender
Read
https://www.thirdgen.org/forums/elec...light-our.html

Last edited by vetteoz; Feb 22, 2012 at 06:54 AM.
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Old Feb 22, 2012 | 10:42 AM
  #3  
zenish's Avatar
Thread Starter
Supreme Member
 
Joined: Dec 2000
Posts: 1,271
Likes: 1
From: stallings,n.c.
Car: 1989 camaro rs convertable
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: 7.5"3.42 gears forth gen 2000 camar
Re: adding low fuel light?

thanks.i hope he has some made to sell.
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Old Aug 1, 2012 | 03:45 PM
  #4  
prplroc92's Avatar
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Posts: 39
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From: wausau WI
Car: 1992 25th Anni. camaro
Engine: 5.7 liter ZZ4 swap TPI
Transmission: T56 (manual 6 speed)
Axle/Gears: corp. disc GM 10 bolt, 3:42
Re: adding low fuel light?

The 77-82 corvette uses a three wire low fuel light. +,- and a 90-0 ohm signal. Seller on ebay has replacement light modules for $30.00. Sellers name is markohpe. If you buy the module from him just ask for the wire diagram for the light module. I have it on my 92 camaro and it works great. Hope it helps
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Old Aug 1, 2012 | 04:01 PM
  #5  
Twin_Turbo's Avatar
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: adding low fuel light?

VDO has already done all the hard work. They sell a make point switch in their marine line which is adjustable and will work with the stock gm senders ohm range, used it multiple times
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