P0463 - OBD2 Trouble Code (2024)

P0463 Code Definition

Fuel Level Sensor “A” Circuit High

What Does the Engine Code P0463 Mean?

Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. "4" in the third character position in a DTC indicates that the auxiliary emission controls system is experiencing a malfunction. The last two characters "63" is DTC number. OBD2 Diagnostic Trouble Code P0463 means that Fuel Level Sensor Circuit High has been detected.

What Is the Cause of P0463?

There can be several damages/failures causing the underlying problem of the OBD2 DTC P0463. To find the root cause of P0463, unlock the “Smart Mechanic" feature in the Carly app.

What Are the Symptoms of the Code P0463?

Symptoms of a faulty fuel pump

Power loss

Illumination of the engine control lamp

Rough engine running

See Also

P0463 – Meaning, Causes, Symptoms, & Fixes

Jerking during acceleration

How much does it cost to diagnose P0463?

Visiting a car repair shop and letting them perform a diagnostics check can cost you $60-$100. For almost the same price you can get Carly. Its advanced features can cover what a professional automotive scanner that costs over $3,000 would, and more!

Carly OBD2 Scanner

How To Diagnose and Clear the Code P0463?

Performing a diagnostics check with a diagnostic scanner helps you identify a particular problem area that is outside the normal range and shows where a fault might be occurring. This helps you to detect errors before they cause more damage to your vehicle.In comparison to generic OBD devices that only provide OBD-level engine-related data, Carly can run advanced manufacturer-level diagnostics, check all your ECUs in your car (like ABS, airbag, multimedia) and get deeper insights. You can find additional information about the trouble code and understand the severity of the problem.With the new Smart Mechanic feature, you get additional professional insights and tips from expert mechanics. You are able to check components and their mechanics, find detailed repair tips, and learn about potential future damage.After you have fixed the problem you can easily clear the fault codes with Carly, too. Also, the diagnostic results are safely stored inside the app or as convenient PDF reports you can share with your friends or a mechanic.

Common Mistakes when diagnosing the P0463 code

The most common mistake is to look and try to fix each individual OBD2 (OBD-II) code without having a holistic understanding and approach. Understanding the interrelationship of different systems is crucial to determining the root cause of the problem and finding the right solution.The new Carly Smart Mechanic feature provides a look at the whole system, not just one individual code. Enable Smart Mechanic in your Carly app and get a holistic solution-focused approach when diagnosing the code P0463.

How Serious Is the Code P0463?

For now, this issue is not serious. Carly recommends you to check this issue on a regular basis and check if it gets worse later on.

How to fix the P0463 Code

P0463 is a generic fault code but the repair steps may vary depending on the root cause and the make/model of your vehicle. Get the Smart Mechanic in your Carly app to learn more and receive guidance.

Learn more about the P0463 Code

Functionality fuel pump

The electric fuel pump delivers the fuel at a defined pressure to the injection valves. These inject the fuel into the intake manifold (intake manifold injection) or directly into the combustion chamber (gasoline direct injection).In intake manifold injection, the electric fuel pump delivers the fuel from the tank to the injection valves. With gasoline direct injection, the fuel is also pumped from the tank by an electric fuel pump. It is then compressed by a high-pressure pump through higher pressure and fed to the high-pressure injection valves.Regardless of whether the engine is cold or has already warmed up, the electric fuel pump (EKP) has an important task. It supplies the engine with sufficient fuel at the pressure required for injection.