AutoCodes – Acura – P2226 Acura

P2226 Acura Code - Barometric Pressure Sensor Circuit Malfunction

Quick Answer

The Barometric pressure (BARO) sensor is built into the Powertrain Control Module (PCM) and monitors atmospheric pressure. Common causes include Powertrain Control Module (PCM) outdated or incorrect software, Faulty Powertrain Control Module (PCM). 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: P2226 Acura indicates Barometric Pressure Sensor Circuit Malfunction.
Common causes: Common causes include Powertrain Control Module (PCM) outdated or incorrect software, Faulty Powertrain Control Module (PCM).
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 350

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2226 Acura Description

The Barometric pressure (BARO) sensor is built into the Powertrain Control Module (PCM) and monitors atmospheric pressure. When the throttle valve is wide open, the Manifold Absolute Pressure (MAP) sensor output is nearly equal to the BARO sensor output. If the throttle position is beyond a value stored in the PCM that is used to detect wide-open throttle, and if the difference between the MAP sensor output and the BARO sensor output is equal to or greater than a set value, a malfunction in the BARO sensor output is detected and a Diagnostic Trouble Code (DTC) is stored.

OBDII Code P2226 Acura - Barometric Pressure Sensor Circuit Malfunction - AutoCodes.com — P2226 Acura Code - Barometric Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P2226 Acura?

Powertrain Control Module (PCM) outdated or incorrect software
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2226 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 P2226 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 P2226 Acura Code

1. What does the OBDII code P2226 mean on an Acura?

P2226 indicates a malfunction in the barometric pressure (BARO) sensor circuit, which measures atmospheric pressure to help the engine control module (ECM) adjust air-fuel ratios and ignition timing.

2. What are the common symptoms of code P2226 in an Acura?

Symptoms can include poor engine performance, reduced fuel efficiency, rough idling, difficulty starting the engine, and the Check Engine Light turning on.

3. What causes the P2226 code on an Acura?

Common causes include a faulty barometric pressure sensor, damaged or corroded wiring or connectors in the sensor circuit, a malfunctioning ECM, or a sensor that is out of calibration.

4. How do I diagnose the P2226 code on an Acura?

Start by using an OBDII scanner to confirm the code. Then inspect the BARO sensor, its wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

5. Can I drive my Acura with the P2226 code?

Driving with the P2226 code is not recommended as it can lead to poor engine performance, reduced fuel efficiency, and potential long-term engine damage if not addressed.

6. How is the P2226 code fixed on an Acura?

Repairs may include replacing the barometric pressure sensor, repairing or replacing damaged wiring or connectors, cleaning connections, or reprogramming or replacing the ECM if necessary.

7. Where is the barometric pressure sensor located in an Acura?

The BARO sensor is typically integrated into the ECM or mounted near the intake manifold, depending on the Acura model. Refer to your vehicle's service manual for the exact location.

8. How much does it cost to fix the P2226 code on an Acura?

The repair cost can range from $100 to $300 or more, depending on whether the BARO sensor needs replacement or if there's significant wiring or ECM work required.

9. Can a dirty air filter cause the P2226 code in an Acura?

No, a dirty air filter does not directly cause the P2226 code, as it relates to the barometric pressure sensor circuit, not the airflow sensor.

10. How can I prevent the P2226 code from recurring on my Acura?

Regularly inspect and maintain the sensor, wiring, and connectors. Ensure your vehicle's ECM is updated with the latest software and avoid exposure to excessive moisture or debris in the engine bay.