69 Camaro Holley Sniper Fuel Tank Indication Error - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 2Likes
  • 2 Post By BOOGIES
 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Sep 4th, 19, 08:14 PM Thread Starter
Team Member
Mark
 
Join Date: Feb 2017
Location: Benton, Arkansas
Posts: 25
69 Camaro Holley Sniper Fuel Tank Indication Error

I installed a Holley Sniper fuel tank kit (included tank and new sending unit) in my 69 with console fuel gauge. The indication appears to work but with error. The gauge reads full until I get down to about 3 or 4 gallons and then it quickly indicates from full to just below half.

Any thoughts?
VETJET is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old Sep 4th, 19, 09:44 PM
Gold Lifetime Member
Jeff
 
yellow69RS's Avatar
 
Join Date: Jul 2007
Location: Aurora, IL
Posts: 5,147
Send a message via Yahoo to yellow69RS
Re: 69 Camaro Holley Sniper Fuel Tank Indication Error

My .02.
Float sticking. Wrong resistance on sending unit. IIRC the console gauge requires some kind of resister on the back. I'm assuming this gauge worked before so I doubt the resistor is gone if it needs one.

Jeff
yellow69RS is offline  
post #3 of 6 (permalink) Old Sep 5th, 19, 02:57 PM
Gold Lifetime Member
Rick
 
Legacy 69's Avatar
 
Join Date: Oct 2008
Location: North of the 49th
Posts: 282
Garage
Re: 69 Camaro Holley Sniper Fuel Tank Indication Error

VETJET I have been chasing the same issue.

Console gauges, with external resistor full of fuel reading past full, 1/2 tank is reading empty. Checked all connections, did the harness test to ground etc, no luck. Swapped out my old console gauge for a new one with internal resistor, no change.

I will update you if I find a solution.

Legacy 69
Legacy 69 is offline  
 
post #4 of 6 (permalink) Old Sep 5th, 19, 07:18 PM
Gold Lifetime Member
Jeff
 
yellow69RS's Avatar
 
Join Date: Jul 2007
Location: Aurora, IL
Posts: 5,147
Send a message via Yahoo to yellow69RS
Re: 69 Camaro Holley Sniper Fuel Tank Indication Error

If you pull the wire at the tank (pink IIRC) and the gauge reads past full and then ground it and the gauge reads below empty you have tested the wiring and gauge. It is working. The problem after that is the sender, sending unit ohms show be 90 ohms when full and zero when empty.

Jeff
yellow69RS is offline  
post #5 of 6 (permalink) Old Sep 6th, 19, 07:31 AM
DT
Gold Lifetime Member
Donny
 
DT's Avatar
 
Join Date: Jun 2005
Location: Rockland Cty/Melb bch Fla
Posts: 5,216
Garage
As mentioned GM used 0 to 90 ohms for our cars. Verify sending unit is s 0 to 90 ohm unit. Make sure ground is good and secure on gas tank strap. ( Stock location)

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
DT is offline  
post #6 of 6 (permalink) Old Sep 9th, 19, 02:17 PM
Senior Tech
stan
 
Join Date: Jan 2009
Location: chalmette louisiana
Posts: 154
I have the same setup, with the pump out of the tank it worked fine to the reading on my console gauge.
After reinstalling into the tank I got different readings.
Carefully watched as putting pump back in tank for the last time and noticed the wire from the pump interfering with the float arm.
Removed again and moved (bent) the wire in a different position and low and behold, it works perfect.
Goes a little past full on full tank but drops accordingly, at half of a tank it takes 8.5 gallons to fill.
yellow69RS and Legacy 69 like this.
BOOGIES 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