New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Sticky Fuel Gauge

Thread Tools
 
Search this Thread
 
Old Jun 5, 2017 | 08:57 PM
  #1  
feederi's Avatar
Thread Starter
Newbie
 
Joined: Feb 2013
Posts: 2
Likes: 0
From: Jacksonville fl
Sticky Fuel Gauge

1994 FD Touring 30500 original miles.

Hello All,

Lost my tach, speedo and odometer. I pulled the cluster and replaced a leaky capacitor on the board. All working now.

Question is: The fuel gauge needle does not read zero when the car is off, or for that matter, when the cluster is pulled and completely disconnected from the wiring harness. While the cluster was on the bench with the lens off, I moved the needle back and forth with my finger, and it seemed to be a little stiff. When the car is started, the needle returns to the same spot from where I moved it with my finger, but stays on the spot when the car is shut down, and even when the battery is disconnected, AND also when the cluster is disconnected from the harness.

What confused me is that I saw a new in box fuel gauge on Ebay, and in the Ebay photo, the needle was at 1/2 a tank!

Should the needle go to empty (zero) when the gauge is not powered, or does it normally stay on the last fuel supply reading? I just can't remember what the fuel gauge does when the car is off. As you can tell from the car's mileage, I don't drive it very much.

Thanks for any advise.
Reply
Old Jun 6, 2017 | 01:16 PM
  #2  
armans's Avatar
Senior Member
Tenured Member: 10 Years
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2014
Posts: 503
Likes: 39
From: America's finest city
should always show last read level, even if no power to the gauge.
Reply
Old Jun 7, 2017 | 11:13 AM
  #3  
feederi's Avatar
Thread Starter
Newbie
 
Joined: Feb 2013
Posts: 2
Likes: 0
From: Jacksonville fl
Yup, of course. Was so excited about the cluster being back in business that I did not think it through. Thanks for your help.
Reply




All times are GMT -5. The time now is 02:31 AM.