20roadking11

I have a 2002 coupe. The needle on the fuel gauge shows no fuel & the DIC states low fuel level. I've got over half a tank. Any input greatly appreciated.

Wayne

bj1k

Do a search on using Techron in the fuel.

JohnnyDee

Techron

Zuti

Very common issue. Techron worked for me after a few applications. Zuti

20roadking11

Thanks for the info. Anybody else?

Wayne

red03vette

my fuel gauge was acting strange too, i used GM's fuel system cleaner. they have two, i used the stronger more expensive one. seemed to work real good, haven't had any problems since. i would have used techron but we can't get it anymore up here in Canada. if you do a search there is a number of issue's that can happen with the fuel senders and the jet siphon pump. good luck

kgie1217

I had the exact same issue about 2 months ago. I ran two bottles of Techron through the system. Everything seems to be working pretty good now. It's definitely a cheaper alternative than replacing the fuel sensors.

DA1984VETTE

I was doing the Techron when the tank was empty. I was then told to add it a half tank and then fill it up. I did this and have not had a problem since. Good advice from above..

20roadking11

Thanks for the explanations. Now I know why. Thanks to everyone. I appreciate y'all.

Wayne

Vetteman Jack

Try the Techron first.

Soundclown

I use a bottle of Techron every 3rd tank of fuel. It's not a pricey safeguard.

dadaroo

If you end up deciding to replace the senders make sure you get the later model AC Delco MU 1218 (updated P/N from MU1004) for the passenger side. it uses 3 wires and not 4 like the 97-98 did. Don't remember if the driver side changed, not at home now. Let us know how things go.

I worked with a guy in Germany a long time back who kept ordering the wrong right side sender (vendor said it SHOULD work) for his earlier car and just couldn't figure out how to make things work until we FINALLY had him order the CORRECT sender.

Groveman

I've had the fuel gauge problem 4 times on my 1999 coupe. Mine would usually read half full after I filled up then slowly creep up to full. Techron solved the problem 3 times. On one occasion my fuel gauge read empty on a full tank and wouldn't budge. I tried the Techron again and nothing happened. I tried a second time at the next fill up and still nothing. I then went into the codes and had a fuel code (can't remember exactly which one), I reset it and the fuel gauge worked properly again.

jcgunn

Pull the codes from the DIC. This will help diagnose the problem. Look for these:

DTC P0461 Fuel Level Sensor Performance
DTC P0462 Fuel Level Sensor Circuit Low Voltage
DTC P0463 Fuel Level Sensor Circuit High Voltage
DTC P1431 Fuel Level Sensor 2 Performance
DTC P1432 Fuel Level Sensor 2 Circuit Low Voltage
DTC P1433 Fuel Level Sensor 2 Circuit High Voltage

CaliforniaJack

If you're near a Chevron or Texaco (same gas) station, start using their gas for a few tanks. I always use Chevron because it has Techron already in it. If you are having fuel level problems, you might need to use a few bottles of concentrate to clean up the existing Sulphur deposits, but just using Chevron or Texaco on a regular basis will keep your fuel sensors clean without the need to add extra Techron.

20roadking11

I luv this forum! A big THANKS to everyone!

Wayne

Ron222

Like everyone else here "TECHRON" is the way to go. Also make sure to use a Top Tier Fuel like, guess what? Chevron with "TECHRON".

http://www.toptiergas.com/