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P2228 Chevrolet Code - Barometric Pressure Sensor Circuit Low Voltage

Quick Answer

The P2228 Chevrolet code indicates that there is a low voltage condition in the barometric pressure sensor circuit. Common causes include Faulty barometric pressure sensor, Wiring or connector issues in the sensor circuit, Corrosion or poor connection in the sensor circuit. 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 Chevrolet indicates Barometric Pressure Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty barometric pressure sensor, Wiring or connector issues in the sensor circuit, Corrosion or poor connection in the sensor circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P2228 Chevrolet Description

The P2228 Chevrolet code indicates that there is a low voltage condition in the barometric pressure sensor circuit. The barometric pressure sensor is responsible for measuring the atmospheric pressure outside the vehicle. This information is used by the engine control module (ECM) to calculate air/fuel mixture and ignition timing. A low voltage in this circuit can lead to incorrect readings being sent to the ECM, resulting in poor engine performance, decreased fuel efficiency, and potential drivability issues.

OBDII Code P2228 Chevrolet - Barometric Pressure Sensor Circuit Low Voltage
P2228 Chevrolet Code - Barometric Pressure Sensor Circuit Low Voltage

Common Causes of P2228 Chevrolet

  1. Faulty barometric pressure sensor
  2. Wiring or connector issues in the sensor circuit
  3. Corrosion or poor connection in the sensor circuit
  4. ECM software or hardware issues
  5. Atmospheric pressure outside the normal range

Symptoms of P2228 Chevrolet

  1. Check engine light illuminated on the dashboard
  2. Decreased engine power or acceleration
  3. Rough idle or stalling
  4. Reduced fuel economy
  5. Engine running rich or lean

How to Fix P2228 Chevrolet

  1. Begin by verifying the code with a diagnostic scan tool.
  2. Inspect the wiring and connectors in the barometric pressure sensor circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the barometric pressure sensor using a multimeter to ensure it is functioning correctly. Replace if faulty.
  4. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to check for ECM issues or atmospheric pressure abnormalities.

Cost to Fix P2228 Chevrolet

The typical repair costs for resolving a P2228 Chevrolet code can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for more accurate pricing information.

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Information for Specific Chevrolet Models

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 Chevrolet Code

1. What are common symptoms of OBDII code P2228 in a Chevrolet related to the Barometric Pressure Sensor Circuit Low Voltage?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potential stalling.

2. What are the possible causes of the P2228 OBDII code in a Chevrolet?

- The code P2228 can be triggered by a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

3. How can I diagnose the cause of the P2228 code in my Chevrolet?

- To diagnose the issue, you can use an OBDII scanner to retrieve the specific trouble code and then inspect the barometric pressure sensor, check the sensor circuit for any damage, and test the sensor's voltage output.

4. Can a dirty air filter trigger the P2228 code in a Chevrolet?

- Yes, a dirty air filter can disrupt the airflow to the barometric pressure sensor, leading to incorrect readings and potentially triggering the P2228 code.

5. Is it safe to continue driving my Chevrolet with the P2228 code present?

- It is not recommended to continue driving with the P2228 code, as it can lead to further engine issues and potential damage if left unresolved.

6. How can I reset the P2228 code in my Chevrolet after making repairs?

- After addressing the underlying issue causing the P2228 code, you can use an OBDII scanner to clear the code and reset the vehicle's engine light.

7. Can a DIY enthusiast repair the P2228 code in a Chevrolet themselves?

- Depending on the cause of the P2228 code, DIY enthusiasts with automotive repair experience may be able to address the issue by replacing the barometric pressure sensor or repairing damaged wiring.

8. Will the P2228 code affect my Chevrolet's emissions and cause it to fail an emissions test?

- Yes, the P2228 code can impact your vehicle's emissions and potentially cause it to fail an emissions test, so it's essential to address the issue promptly.

9. How much can I expect to pay for professional repairs for the P2228 code in a Chevrolet?

- Repair costs for the P2228 code can vary depending on the cause and the repair shop, but you can expect to pay anywhere from $100 to $300 for parts and labor.

10. Are there any preventive maintenance tips to avoid the P2228 code in a Chevrolet?

- Regularly inspecting and replacing the air filter, ensuring proper engine maintenance, and addressing any issues promptly can help prevent the occurrence of the P2228 code in a Chevrolet.

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