AutoCodes – Honda – P2228 2008 Honda Accord

P2228 2008 Honda Accord Code - Barometric Pressure Sensor Circuit Low Voltage

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 Common causes include Powertrain Control Module (PCM) outdated or incorrect software, Faulty Powertrain Control Module (PCM).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: P2228 2008 Honda Accord indicates Barometric Pressure Sensor Circuit Low Voltage.
Common causes: Common causes include Powertrain Control Module (PCM) outdated or incorrect software, Faulty Powertrain Control Module (PCM).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 3,169

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 P2228 2008 Honda Accord 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 P2228 2008 Honda Accord - Barometric Pressure Sensor Circuit Low Voltage - AutoCodes.com — P2228 2008 Honda Accord Code - Barometric Pressure Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2228 2008 Honda Accord?

Powertrain Control Module (PCM) outdated or incorrect software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

How to Fix the DTC P2228 2008 Honda Accord?

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 P2228 2008 Honda Accord 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 P2228 2008 Honda Accord Code

1. What does the OBDII code P2228 mean on a 2008 Honda Accord?

P2228 indicates that the Barometric Pressure Sensor Circuit is detecting a voltage level lower than expected, which can affect engine performance.

2. What are the common symptoms of code P2228 in a 2008 Honda Accord?

Symptoms may include poor engine performance, reduced fuel efficiency, difficulty starting, and possibly the Check Engine Light illuminating.

3. What causes the P2228 code in a 2008 Honda Accord?

Common causes include a faulty barometric pressure sensor, damaged wiring or connectors, a failed powertrain control module (PCM), or calibration issues.

4. Can a P2228 code cause drivability issues in a 2008 Honda Accord?

Yes, it can cause drivability issues such as rough idling, stalling, or hesitation during acceleration due to improper air-fuel mixture readings.

5. How do you diagnose the P2228 code in a 2008 Honda Accord?

Diagnosis typically involves checking the barometric pressure sensor voltage with a multimeter, inspecting the wiring and connectors, and verifying proper sensor operation with a scan tool.

6. How can the P2228 code be fixed on a 2008 Honda Accord?

Repairs may include replacing the barometric pressure sensor, repairing damaged wiring or connectors, updating the PCM software, or replacing the PCM if necessary.

7. Is it safe to drive a 2008 Honda Accord with a P2228 code?

While the vehicle may still be drivable, continued operation can lead to further engine performance issues and decreased fuel efficiency, so addressing the issue promptly is recommended.

8. Where is the barometric pressure sensor located on a 2008 Honda Accord?

The barometric pressure sensor is often integrated into the PCM or located near the intake manifold, depending on the engine configuration.

9. Can a dirty air filter trigger the P2228 code in a 2008 Honda Accord?

A dirty air filter is unlikely to directly cause the P2228 code, but it can contribute to airflow issues that may exacerbate related engine performance problems.

10. How much does it cost to repair a P2228 code on a 2008 Honda Accord?

Repair costs vary, but replacing the barometric pressure sensor typically ranges from $100 to $300, including parts and labor. Wiring repairs or PCM replacement may cost more.