i replaced my civic dx instrument cluster a long time ago with an ex cluster with the tach. the entire cluster works perfectly EXCEPTfor the fuel gauge. it continuously shows that i have a full tank whether i do or don't. it has shown this since i replaced the cluster. so then i put my original cluster in and it then read that i have a full tank all of the time too. i don't know what to do for it now. it's really getting on my nerves with all of the gas station trips. i was wondering if a sensor somewhere is messed up or something in the gas tank is stuck, just not sure. any thoughts would be nice.

 

It could be as simple as a wire from sending unit to the gauge...

 

how 2 check that?

 

Hmm, service manual devotestwo full letter size pages to the testing of fuel gauge and sending unit. Sorry, but I'm kind of lazy to re-type all this here for you. If you don't have the manual, try to search this site, I remember people were posting links to the scanned service manuals somewhere on the web. When you find or buy one, it's in "Electrical" chapter, pages 23-143 and 23-144 for92-95 model that I have.

 

whoops, forgot about the manual, yeah i got one