P0463 on a Honda: Causes, Fixes & Repair Cost

🟢 Low severity · drivable

Safe to drive, but the fuel gauge may be wrong — track your miles or fill up often so you don't run out of gas.

What P0463 means on a Honda

On a Honda, P0463 means the fuel level sender is sending a signal that's too high, so the computer reads the tank as full. The sender's float and resistor strip wear with age, which is why the fuel gauge on many Hondas ends up stuck on full. The engine itself runs fine.

Is P0463 common on Hondas?

P0463 is common on higher-mileage Hondas like the Civic, Accord, and CR-V, where the fuel level sender sits inside the fuel pump module. A bent float arm or a worn resistor strip is the usual failure. It's a gauge problem, not a performance problem.

Commonly reported on: Civic, Accord, CR-V.

Symptoms

Check engine light on
Fuel gauge stuck on full
Fuel gauge reads wrong or drops suddenly
No change in how the car drives

Common causes

most common: Worn fuel level sender or bent float arm
common: Short or damaged wiring in the fuel level circuit
common: Corroded connector on the fuel pump module
less common: Faulty instrument cluster reading

How to fix it

Fix	DIY?	Typical cost
Check the fuel level sensor wiring and connector	Yes	$0–40
Replace the fuel pump module with sender	Mechanic	$250–550
Repair a short or broken wire in the sensor circuit	Mechanic	$80–200