Fuel guage on civic reads backwards - 1995 Honda Civic

You most likely need to replace the fuel level sending unit inside the fuel tank.

Check that there are no holes in the float. If the fuel is getting into the float, it will give a false reading. Another thing is to check the ground on the float sensor. If it's not connected tightly, it will create a false reading too.

Your Instrument Cluster went bad....

you tell us?
a walk on the wild side?
you could read the FSM on both cars, and figure it out.
not me.... sorry./
but is covered in all civic forums, (never this one)
seen that covered, (lots of issues)

Hi, this sounds like a loose wire or connector. I recommend you pull the PGM-FI relay up out of it's socket and check to make sure the terminals underneath are not pushed in and fit snug onto the relay blades.

if you know how check to see if the fuel pump connections are loose or check to see if it has a bad ground wire that could be the case

Thanks for choosing FixYa and welcome. You may have a bad sending unit. It could also be a defective dash voltage regulator, lost ground at sending unit, break in the wire at the dash harness too. It can be anyone of these to be honest.

This is indicative of the FUEL LEVEL Sending Unit and it is Incorperated With Fuel Pump Thus Requires Pump Replacment

Sounds like you have a bad fuel gauge sending unit.

The problem is the fuel guage sending unit, this is in the fuel tank, it will have to be changed out.