AutoCodes – Chevrolet – P2228 2018 Chevrolet Silverado

P2228 2018 Chevrolet Silverado Code - Barometric Pressure Sensor Circuit Low Voltage

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: P2228 2018 Chevrolet Silverado indicates Barometric Pressure Sensor Circuit Low Voltage.
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 631

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 P2228 2018 Chevrolet Silverado 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 sensor voltage is less than 2.0 V for greater than 4 s.

OBDII Code P2228 2018 Chevrolet Silverado - Barometric Pressure Sensor Circuit Low Voltage - AutoCodes.com — P2228 2018 Chevrolet Silverado Code - Barometric Pressure Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2228 2018 Chevrolet Silverado?

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 P2228 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

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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 2018 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P2228 in a 2018 Chevrolet Silverado?

Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and illuminated Check Engine Light.

2. What does the OBDII code P2228 on a 2018 Chevrolet Silverado indicate?

Code P2228 signifies a low voltage condition in the barometric pressure sensor circuit of the vehicle.

3. What are the possible causes of OBDII code P2228 in a 2018 Chevrolet Silverado?

Potential causes include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the issue causing OBDII code P2228 on my 2018 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to retrieve the trouble code, checking the sensor's voltage output, inspecting the sensor and its wiring for damage, and testing the ECM.

5. Can I continue driving my 2018 Chevrolet Silverado with OBDII code P2228?

It is not recommended to drive the vehicle with this code present, as it can lead to further engine issues and potential damage if left unresolved.

6. Is it possible to reset OBDII code P2228 in a 2018 Chevrolet Silverado?

While you can clear the code using a scan tool, it is essential to address the underlying issue causing the code to prevent it from reoccurring.

7. How can I repair OBDII code P2228 in my 2018 Chevrolet Silverado?

Repair options may include replacing the barometric pressure sensor, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

8. Are there any DIY tips for fixing OBDII code P2228 on a 2018 Chevrolet Silverado?

DIY enthusiasts can attempt to inspect the sensor and its wiring for visible damage, but for accurate diagnosis and repair, it's recommended to consult a professional mechanic.

9. Can extreme weather conditions cause OBDII code P2228 in a 2018 Chevrolet Silverado?

Extreme temperature changes or severe weather conditions may potentially affect the barometric pressure sensor's performance, leading to the code being triggered.

10. How much does it cost to fix OBDII code P2228 in a 2018 Chevrolet Silverado?

The cost of repair can vary depending on the root cause of the issue, but it may involve sensor replacement, wiring repairs, or ECM reprogramming, with costs ranging from a few hundred to over a thousand dollars.