AutoCodes – Buick – P2227 Buick

P2227 Buick Code - Barometric Pressure Sensor Performance

Quick Answer

The Barometric Pressure (BARO) sensor is integral to the multifunction intake air sensor and responds to changes in altitude and atmospheric conditions. Common causes include Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor 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: P2227 Buick indicates Barometric Pressure Sensor Performance.
Common causes: Common causes include Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor 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 11,866

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 21, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2227 Buick Description

The Barometric Pressure (BARO) sensor is integral to the multifunction intake air sensor and responds to changes in altitude and atmospheric conditions. This gives the Engine Control Module (ECM) an indication of barometric pressure. The ECM uses this information to calculate fuel delivery. The BARO sensor provides a voltage signal to the ECM relative to the atmospheric pressure changes. The ECM monitors the BARO sensor signal for a voltage outside of the normal range. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the BARO pressure is less than 50 kPa (7.3 psi) or greater than 115 kPa (16.7 psi).

OBDII Code P2227 Buick - Barometric Pressure Sensor Performance - AutoCodes.com — P2227 Buick Code - Barometric Pressure Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P2227 Buick?

Faulty Barometric Pressure (BARO) Sensor (integrated within Mass Air Flow/Multifunction Intake Air Sensor)
Barometric Pressure Sensor harness is open or shorted
Barometric Pressure Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2227 Buick?

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 P2227 Buick 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 P2227 Buick Code

1. What are the common symptoms of OBDII code P2227 in a Buick related to the Barometric Pressure Sensor Performance?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and potentially, the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P2227 in a Buick?

- The code P2227 in a Buick related to the Barometric Pressure Sensor Performance can be caused by a faulty barometric pressure sensor, a vacuum leak, wiring issues, or a problem with the engine control module (ECM).

3. How can I diagnose the OBDII code P2227 in my Buick?

- To diagnose code P2227, you can use an OBDII scanner to retrieve the specific fault code and then inspect the barometric pressure sensor, vacuum lines, and wiring for any visible damage or issues.

4. What are some repair tips for fixing OBDII code P2227 in a Buick?

- Repair tips may include replacing the barometric pressure sensor, repairing any damaged vacuum lines, checking and repairing wiring connections, and resetting the ECM after making repairs.

5. Can I continue driving my Buick with OBDII code P2227 present?

- It is not recommended to drive your Buick with the OBDII code P2227 related to the Barometric Pressure Sensor Performance present, as it can lead to further engine issues and potential safety concerns.

6. How much does it typically cost to fix OBDII code P2227 in a Buick?

- The cost of fixing OBDII code P2227 in a Buick can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can I reset the Check Engine Light after fixing OBDII code P2227 in my Buick?

- Yes, after fixing the issue causing OBDII code P2227, you can reset the Check Engine Light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. What is the role of the barometric pressure sensor in a Buick's engine system?

- The barometric pressure sensor in a Buick's engine system helps the ECM calculate the optimal air-fuel mixture for efficient engine performance based on atmospheric pressure.

9. How long does it take to repair OBDII code P2227 in a Buick?

- The repair time for fixing OBDII code P2227 in a Buick can vary depending on the exact cause and the complexity of the repair, but it may take anywhere from 1 to 3 hours.

10. Is it possible to prevent OBDII code P2227 from occurring in my Buick?

- While some causes of OBDII code P2227 may be unpredictable, regular maintenance, timely sensor inspections, and addressing issues promptly can help prevent this code from occurring in your Buick.