AutoCodes – Acura – P2626 Acura

P2626 Acura Code - Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open

Quick Answer

The front air/fuel ratio (A/F) sensor (bank 1, sensor 1) is installed in the exhaust manifold and detects oxygen content in the exhaust gas. Common causes include Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1, Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2626 Acura indicates Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open.
Common causes: Common causes include Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1, Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,858

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2626 Acura Description

The front air/fuel ratio (A/F) sensor (bank 1, sensor 1) is installed in the exhaust manifold and detects oxygen content in the exhaust gas. The front A/F sensor transmits output voltage to the Powertrain Control Module (PCM). The PCM controls fuel injection duration by comparing the target air/fuel ratio with the front A/F sensor signal. The sensor includes the VS cell, the pump cell, the atmospheric reference cavity, the diffusion layer, and the heater, and it enables overall feedback control. The front A/F sensor (bank 1, sensor 1) has a built-in LABEL resistance to regulate the differences of the sensor characteristics. The PCM reads the resistance to regulate the difference properly. If the LABEL resistance (VLBLB 2 signal voltage) is a set value or more, the PCM detects a malfunction and stores a DTC.

OBDII Code P2626 Acura - Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open - AutoCodes.com — P2626 Acura Code - Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2626 Acura?

Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1
Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted
Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection

How to Fix the DTC P2626 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 P2626 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.

Need more information about the P2626 Acura code?

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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 P2626 Acura Code

1. What are the common symptoms of OBDII code P2626 in an Acura related to the Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open?

- Common symptoms may include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light.

2. What are the potential causes of the OBDII code P2626 in an Acura?

- The code P2626 can be triggered by issues such as a faulty air/fuel ratio sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).

3. How can I diagnose the cause of OBDII code P2626 in my Acura?

- Diagnosis typically involves checking the wiring and connectors for damage, testing the air/fuel ratio sensor, and using a scan tool to monitor sensor data and ECM communication.

4. Can I still drive my Acura with the OBDII code P2626 present?

- While the vehicle may still be driveable with the code present, it is recommended to address the issue promptly to prevent potential damage to the engine or emissions system.

5. How can I repair OBDII code P2626 in my Acura related to the Air/Fuel Ratio Sensor Bank 1 Sensor 1 Circuit Open?

- Repair may involve replacing the air/fuel ratio sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM if necessary.

6. Are there any maintenance tips to prevent OBDII code P2626 in my Acura?

- Regular maintenance, such as checking and replacing oxygen sensors according to the manufacturer's recommendations, can help prevent issues leading to code P2626.

7. Can a DIY enthusiast fix OBDII code P2626 in an Acura?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the code by following repair guides and using appropriate diagnostic equipment.

8. How much does it typically cost to repair OBDII code P2626 in an Acura at a professional auto repair shop?

- Repair costs can vary depending on the specific cause of the code, but they may range from $200 to $500 or more, including parts and labor.

9. Will resetting the check engine light clear OBDII code P2626 in my Acura?

- Resetting the check engine light may temporarily turn it off, but if the underlying issue causing code P2626 is not addressed, the light is likely to come back on.

10. Is it important to fix OBDII code P2626 in my Acura immediately?

- It is recommended to address code P2626 promptly to prevent potential damage to the vehicle's engine or emissions system and ensure optimal performance and fuel efficiency.