Table of Contents
ToggleWhat is P2068 : Engine Error code Causes Explained

This Guide covers the P2068 engine trouble code, its causes, symptoms, and remedies. Understand this problem code to diagnose fuel level sensor issues and optimize vehicle performance. Explore its details.
How to Identify a DTCs Number

The Diagnostic Trouble Code (DTC) P2068 is related to the fuel level sensor circuit. Specifically, it indicates a high input issue in the fuel level sensor “B” circuit.
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
When P2068 appears, you may notice incorrect fuel level readings on your dashboard, the fuel gauge may fluctuate unpredictably, or the check engine light might illuminate.
Causes of P2068 Code:

- Faulty Fuel Level Sensor:
The sensor malfunctioning and sending incorrect fuel level readings is the most common cause. - Damaged Wiring:
Damaged or corroded wires within the fuel level sensor circuit can lead to a high signal reading. - Poor Ground Connection:
A faulty ground in the fuel sensor circuit can cause abnormally high readings. - Corrosion in Fuel Tank:
Corrosion inside the fuel tank can interfere with the sensor’s functionality. - Faulty Instrument Cluster:
In rare cases, a faulty instrument cluster may contribute to the P2068 code.
Risk Level of P2068 Error Code:

A medium risk level for this code suggests that while the vehicle may still be drivable, incorrect fuel level readings can lead to miscalculations in fuel efficiency and potentially leave you stranded if the fuel gauge is inaccurate
Ignoring this code for too long could increase the risk level to HIGH, leading to engine stalling, failure to start, or dangerous driving conditions. It’s best to diagnose and repair the issue as soon as possible.
Common Car Brands Affected by P2068 Code:
The P2068 engine error code is commonly found in the following list.
- Dodge
- General motor
- Hyundai
- Honda
- KIA
Video: P2068 Engine Error code
FAQ’s
What is the P2068 Error Code?
The P2068 error code indicates a problem with the fuel level sensor “B” circuit, where the sensor sends incorrect or inconsistent fuel level data to the engine control module (ECM).
What Causes the P2068 Error Code?
Common causes include a faulty fuel level sensor, damaged wiring or connectors, ECM issues, or corrosion in the fuel tank components.
What is the Risk Level of P2068?
This code has a medium risk level. While it doesn’t immediately affect engine performance, incorrect fuel readings can lead to unexpected stalling or running out of fuel.
Which Vehicles are Affected by P2068?
The P2068 error commonly affects vehicles from manufacturers like Dodge, General motor, Hyundai, Honda and KIA models with electronic fuel level sensors.