AutoCodes – BMW – P2228 BMW

P2228 BMW Code - Barometric Pressure Sensor 'A' Circuit Low

Quick Answer

This fault code is stored in the engine control module when a malfunction is detected in the barometric pressure sensor circuit. Common causes include Faulty Barometric Pressure (BARO) 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: P2228 BMW indicates Barometric Pressure Sensor 'A' Circuit Low.
Common causes: Common causes include Faulty Barometric Pressure (BARO) 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,256

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 Jun 03, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2228 BMW Description

This fault code is stored in the engine control module when a malfunction is detected in the barometric pressure sensor circuit. The Engine Control Module (ECM) uses the barometric pressure sensor to monitor air pressure and hence air density. More dense air contains more oxygen particles, less dense air contains fewer oxygen particles. The engine fueling can be adjusted accordingly. The barometric pressure sensor can be a separate component sampling the atmospheric air pressure. Occasionally the component can be fitted internally within the engine control module.

OBDII Code P2228 BMW - Barometric Pressure Sensor 'A' Circuit Low - AutoCodes.com — P2228 BMW Code - Barometric Pressure Sensor 'A' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2228 BMW?

Faulty Barometric Pressure (BARO) 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 P2228 BMW?

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 BMW 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 P2228 BMW code?

Need more information on how to fix the P2228 BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2228 BMW code diagnosed by a professional: Find a repair shop in your area

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 BMW Code

1. What does the OBDII code P2228 mean on a BMW?

P2228 indicates that the barometric pressure sensor 'A' circuit is reading a low voltage, suggesting an issue with the sensor or its circuitry.

2. What are the common symptoms of the P2228 code on a BMW?

Symptoms may include poor engine performance, reduced fuel efficiency, difficulty starting the engine, and the illumination of the check engine light.

3. What causes the P2228 code in a BMW?

Common causes include a faulty barometric pressure sensor, damaged wiring or connectors, a malfunctioning powertrain control module (PCM), or environmental factors like water intrusion.

4. How do you diagnose the P2228 code on a BMW?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors, testing the barometric pressure sensor, and checking for related codes.

5. Can I drive my BMW with the P2228 code?

Driving with this code is not recommended as it may lead to poor engine performance, reduced fuel efficiency, and potential engine damage over time.

6. How is the P2228 code fixed on a BMW?

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

7. Where is the barometric pressure sensor located on a BMW?

The barometric pressure sensor is typically located near the intake manifold or integrated into the PCM, depending on the BMW model.

8. How much does it cost to fix the P2228 code on a BMW?

Repair costs can vary but generally range from $150 to $400, depending on whether the sensor needs replacement or the issue involves more extensive wiring repairs.

9. Can a dirty air filter cause the P2228 code on a BMW?

While a dirty air filter can affect engine performance, it is unlikely to directly cause the P2228 code, which specifically relates to the barometric pressure sensor circuit.

10. Does the P2228 code require professional repair, or can I fix it myself?

If you are comfortable with automotive diagnostics and repairs, you may be able to fix it yourself. However, professional assistance is recommended for accurate diagnosis and repair.