68 fuel gauge wiring? - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Jul 23rd, 04, 02:26 PM Thread Starter
Senior Tech
Jeff
 
Join Date: Jun 1999
Location: Ewing, NJ 08560
Posts: 2,438
Post

My 68 Camaro has no wiring connected to the stock fuel gauge. Can I just connect a switched on 12 volt lead to one stud and then the wire going to the sending unit to the other stud and get an accurate reading? Is there supposed to be something else connected to the back of the fuel gauge like a resistor? I can't seem to find the original 3 wire connector up under the dash for it. And since someone else wired the car for the 94 LT1 engine, I don't want to mess around with changing any wiring, I'll run a new wire back to the sending unit if that's all I have to do.

Jeff H
69 Z28 Hugger Orange original factory JL8 brakes, being restored
Jeff H is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old Jul 26th, 04, 08:42 AM
Senior Tech
 
Join Date: Apr 2003
Location: Hartford, CT
Posts: 818
Post

Jeff:
That will work. The fuel gauge only a stud for the power connection and a stud for the sending unit connection, and a ground. Original fuel guages did have a resistor to calibrate the guage correctly. The resistor is behind/attcahed to the studs on the gauge. Baiscally looks like a small white piece of "plastic" wrapped with wire. You should be able to see it by just looking at the back of the gauge.

Dan
'68 Convertible

Dan
'68 Camaro Convertible

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
dschribs is offline  
post #3 of 6 (permalink) Old Jul 26th, 04, 06:16 PM Thread Starter
Senior Tech
Jeff
 
Join Date: Jun 1999
Location: Ewing, NJ 08560
Posts: 2,438
Post

Yes, I noticed the resistor is on there. My sending unit is measuring too high though. It was reading 120 ohms with a full tank and is now down to 112 ohms. I'll keep an eye on the gauge to see if it moves. I think the previous owner modified the sending unit to work with the fuel injection and return line so I don't really want to mess with it if I can get my gauge to read something meaningful.

Jeff H
69 Z28 Hugger Orange original factory JL8 brakes, being restored
Jeff H is offline  
 
post #4 of 6 (permalink) Old Jul 28th, 04, 09:54 AM Thread Starter
Senior Tech
Jeff
 
Join Date: Jun 1999
Location: Ewing, NJ 08560
Posts: 2,438
Post

Does it matter which post on the fuel gauge the power lead goes on and which post goes to the sending unit? There is nothing labeled on the back of the gauge.

Jeff H
69 Z28 Hugger Orange original factory JL8 brakes, being restored
Jeff H is offline  
post #5 of 6 (permalink) Old Aug 1st, 04, 10:48 AM
Team Member
John
 
JohnZ's Avatar
 
Join Date: Sep 2000
Location: Washington, Michigan USA
Posts: 7,728
Post

Yes, it does - if you connect 12V to the sender terminal, it'll fry the gauge. [img]graemlins/clonk.gif[/img]

JohnZ
CRG
JohnZ is offline  
post #6 of 6 (permalink) Old Aug 2nd, 04, 05:26 PM Thread Starter
Senior Tech
Jeff
 
Join Date: Jun 1999
Location: Ewing, NJ 08560
Posts: 2,438
Post

Which terminal is the which? There is nothing on the back of the gauge that shows I or S.

Jeff H
69 Z28 Hugger Orange original factory JL8 brakes, being restored
Jeff H is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome