AutoCodes – KIA – P2248 KIA

P2248 KIA Code - O2 Sensor Reference Voltage Performance Bank 2 Sensor 1

Quick Answer

The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Oxygen Sensor Bank 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P2248 KIA indicates O2 Sensor Reference Voltage Performance Bank 2 Sensor 1.
Common causes: Common causes include Faulty Front Oxygen Sensor Bank 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 1,918

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2248 KIA Description

The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P2248 KIA - O2 Sensor Reference Voltage Performance Bank 2 Sensor 1 - AutoCodes.com — P2248 KIA Code - O2 Sensor Reference Voltage Performance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P2248 KIA?

Faulty Front Oxygen Sensor Bank 2
Front Oxygen Sensor Bank 2 harness is open or shorted
Front Oxygen Sensor Bank 2 circuit poor electrical connection

How to Fix the DTC P2248 KIA?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2248 KIA code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2248 KIA Code

1. What does the OBDII code P2248 mean for a KIA?

P2248 indicates an issue with the O2 sensor reference voltage performance for Bank 2 Sensor 1, meaning the sensor isnâ€™t receiving or interpreting the correct voltage signal.

2. What are the common symptoms of P2248 in a KIA?

Symptoms may include a check engine light, poor fuel economy, rough idling, reduced engine performance, and increased emissions.

3. What causes the P2248 code in a KIA?

Common causes include a faulty oxygen sensor, damaged wiring or connectors, a malfunctioning powertrain control module (PCM), or an exhaust leak upstream of the sensor.

4. Which sensor is affected by the P2248 code?

The code refers to Bank 2 Sensor 1, which is the upstream oxygen sensor on the side of the engine opposite Cylinder 1.

5. How is the P2248 code diagnosed?

A technician will check the O2 sensorâ€™s voltage readings using a scan tool, inspect the wiring and connectors, and test for any exhaust leaks or PCM issues.

6. Can I drive my KIA with the P2248 code active?

While the vehicle may still be drivable, it is not recommended as it can lead to poor engine performance, increased emissions, and potential damage to other components.

7. How do I fix the P2248 code in my KIA?

Repairs may involve replacing the faulty oxygen sensor, fixing damaged wiring or connectors, addressing an exhaust leak, or reprogramming or replacing the PCM.

8. How much does it cost to fix the P2248 code on a KIA?

Costs vary but typically range from $150 to $400 for oxygen sensor replacement, with additional costs if wiring or PCM repairs are needed.

9. Can a dirty air filter cause the P2248 code?

A dirty air filter is not a direct cause of P2248 but can contribute to engine performance issues that may affect oxygen sensor readings.

10. Will clearing the P2248 code without fixing the issue solve the problem?

Clearing the code may temporarily turn off the check engine light, but the issue will likely return until the underlying problem is properly addressed.