hi can't figure this one out: have an '89 civic dx hatchback & the fuel gauge "sticks". have replaced the gauge - same problem. have replaced the sender - same problem. have checked the earth in the trunk - the trunk light now works, but the above problems still persist. have checked the wiring - 7.6v at the sender, the book says should be battery. but if i disconnect, the gauge goes below zero, if i short, it goes to full, so behavior indicates that's ok. and if i disconnect, then reconnect, the gauge moves to register the fuel level present at that time, then it stays at that level and won't move again. i've also double checked the sender and it's output is within the resistance ranges quoted in the helm manual. anyone got any ideas?