AutoCodes – Acura – P2246 Acura

P2246 Acura Code - O2 Sensor Reference Voltage Circuit High Bank 1 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 1, Front Oxygen Sensor Bank 1 harness is open or shorted, Front Oxygen Sensor Bank 1 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: P2246 Acura indicates O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1.
Common causes: Common causes include Faulty Front Oxygen Sensor Bank 1, Front Oxygen Sensor Bank 1 harness is open or shorted, Front Oxygen Sensor Bank 1 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 1,734

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 P2246 Acura 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 P2246 Acura - O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 - AutoCodes.com — P2246 Acura Code - O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P2246 Acura?

Faulty Front Oxygen Sensor Bank 1
Front Oxygen Sensor Bank 1 harness is open or shorted
Front Oxygen Sensor Bank 1 circuit poor electrical connection

How to Fix the DTC P2246 Acura?

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 P2246 Acura 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 P2246 Acura Code

1. What are the common symptoms of OBDII code P2246 in an Acura related to the O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1?

- Common symptoms include poor fuel efficiency, rough idling, engine misfires, and potentially a noticeable decrease in engine performance.

2. What typically causes the OBDII code P2246 to trigger in an Acura?

- This code is usually triggered by issues such as a faulty O2 sensor, a damaged wiring harness, or a problem with the engine control module (ECM).

3. How can I diagnose the O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 issue in my Acura?

- To diagnose this issue, you can use an OBDII scanner to retrieve the specific fault code, inspect the O2 sensor and its wiring for damage, and test the sensor's voltage output.

4. Can I continue driving my Acura with the P2246 code active?

- It is not recommended to drive your vehicle with the P2246 code active, as it can lead to further damage to the engine and negatively impact fuel efficiency.

5. What are some repair tips for fixing the OBDII code P2246 in my Acura?

- Repair tips include replacing the faulty O2 sensor, repairing or replacing damaged wiring, and resetting the fault code using an OBDII scanner after completing the repairs.

6. Is it possible to reset the OBDII code P2246 in an Acura without fixing the underlying issue?

- While you can reset the code using an OBDII scanner, it is essential to address the underlying problem to prevent the code from reoccurring.

7. How much does it typically cost to repair the O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 issue in an Acura?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the OBDII code P2246 in an Acura?

- While some experienced DIY enthusiasts may be able to address this issue themselves, it is recommended to seek professional help if you are not familiar with automotive repairs involving sensors and wiring.

9. Will fixing the O2 Sensor Reference Voltage Circuit High Bank 1 Sensor 1 problem improve my Acura's performance?

- Yes, addressing this issue can improve your Acura's performance, fuel efficiency, and overall drivability.

10. How long does it take to repair the OBDII code P2246 issue in an Acura?

- The repair time can vary depending on the extent of the problem and the availability of parts, but it typically takes a few hours to complete the necessary repairs.