False 'Low Fuel' Display

I have a 2000 coupe that intermittently displays 'Low Fuel' on the
display. I was parked on a smaill incline while I went into the
house to get something, when I came back out, the fuel guage
had dropped to almost zero. I knew I had between a 1/4 and 1/2
tank of gas. Then a few days later, I was driving home, and the
same thing happened. I was almost home, and the display read
'Low Fuel', when I knew there was almost a 1/2 tank. So, I
parked the car. Let it sit for a minute, then started the car. Same, 'Low Fuel'. So, I when I got into the car this morning,
the fuel guage was back to normal, and no message. Anyone else ever have this problem? I thought perhaps a faulty float
guage in the tank. Any suggestions?

Search the archives. A longstanding problem with a number of 'fixes,' but no generally agreed solution. Latest from GM is reprogramming the computer to adjust the sensitivity of the gauge.

Regards,
Garibaldi

[c4c5specialist]

HI there,
The fuel system recalibration is the first course of action to this concern.
Please let us know if you have the condition after that time.
Allthebest, c4c5

[justafamilyman]

Hi 2kcoupe,
I own a 2003 coupe. Not many bells and whilstles. Just the Z51 suspension and the G92 rear axle.
This is what happened to me:
I asked at the dealer about which gas I slould use and was told "Sunoco" (this is upstate NY). Ok, but there are not many Sunoco stations. I have used Mobil and Hess consistantly in all of my wife and my cars and have had no problems. In fact, I prefer Mobil in my Buick. Well, one day I filled up the Vette with Mobil 93. Acyually it was 2-3 tankfulls. Anyway, I experienced what you just described. The fix, to me, was filling up with Sunoco 94, then staying with Sunoco 93. This is -not- a slam against Mobil. Mobil is the perfered gas for the other cars. For the Vette, however, its Sunoco. Not much scientific data, but just fyi.
A Collective Vette Peace To All
Blue Borg Brian 1 of 58

Thank you for the replies to this fuel question. It appears that
the type of gas used has a dramatic effect on the performance,
and especially on the computer that controls the vehicle. I started
out using only Sunoco 94 octane. Then every once in a while, I
would use Exxon 93 octane. I didn't think this minor variation
would have such a dramatic effect. I'm going use only Sunoco 94
and see what happens. When I get my car serviced, I will have
the PCM updated with the Tech Tip from June 03.