P227B 2014 GMC Sierra Code - Barometric Pressure Sensor 2 Performance
Quick Answer
The Barometric Pressure (BARO) Sensor 2, also referred to as the Turbocharger Inlet Air Pressure (TCIAP) sensor, is integral to the Multifunction Intake Air Sensor and is used for humidity sensor signal correction. Common causes include Faulty Multifunction Intake Air Sensor, Multifunction Intake Air Sensor harness is open or shorted, Multifunction Intake Air 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
- P227B 2014 GMC Sierra indicates Barometric Pressure Sensor 2 Performance.
- Common causes
- Common causes include Faulty Multifunction Intake Air Sensor, Multifunction Intake Air Sensor harness is open or shorted, Multifunction Intake Air 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.
Code P227B 2014 GMC Sierra Description
- Intake Air Temperature (IAT) Sensor 1
- IAT Sensor 2
- Humidity Sensor
- Mass Air Flow (MAF) Sensor
- Turbocharger Inlet Air Pressure (TCIAP) Sensor (BARO 2)
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the BARO sensor pressure is less than 50 kPa (7.3 PSI) or greater than 115 kPa (16.7 PSI), for greater than 62.5 ms.
What are the Possible Causes of the DTC P227B 2014 GMC Sierra?
- Faulty Multifunction Intake Air Sensor
- Multifunction Intake Air Sensor harness is open or shorted
- Multifunction Intake Air Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P227B 2014 GMC Sierra?
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 P227B 2014 GMC Sierra 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 P227B 2014 GMC Sierra code?
Need more information on how to fix the P227B 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P227B 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P227B 2014 GMC Sierra Code
What does the OBDII code P227B mean on a 2014 GMC Sierra?
The P227B code indicates a performance issue with Barometric Pressure Sensor 2, which monitors atmospheric pressure to help the engine control system adjust air-fuel ratios.
What are the common symptoms of the P227B code in a 2014 GMC Sierra?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, and the check engine light being illuminated.
What causes the P227B code to appear on a 2014 GMC Sierra?
Common causes include a faulty barometric pressure sensor, damaged wiring or connectors, or issues with the engine control module (ECM).
Can I continue driving with the P227B code on a 2014 GMC Sierra?
While the truck may still be drivable, ignoring the code can lead to decreased performance and potential long-term engine damage. It’s best to address the issue promptly.
How do I diagnose the P227B code on a 2014 GMC Sierra?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the barometric pressure sensor and its wiring, and comparing sensor readings with known good values.
How do I fix the P227B code on a 2014 GMC Sierra?
Repairs may include replacing the faulty barometric pressure sensor, repairing damaged wiring, or reprogramming or replacing the engine control module if needed.
Where is the Barometric Pressure Sensor 2 located on a 2014 GMC Sierra?
The barometric pressure sensor is typically integrated into the ECM or mounted near the intake manifold, but consult your vehicle’s service manual for the exact location.
How much does it cost to fix the P227B code on a 2014 GMC Sierra?
Repair costs can vary but generally range from $100 to $300, depending on whether the sensor, wiring, or ECM needs to be replaced or repaired.
Can a dirty air filter cause the P227B code on a 2014 GMC Sierra?
A dirty air filter is unlikely to cause this code directly, but it can contribute to airflow issues that may affect sensor performance.
Is it necessary to reprogram the ECM when fixing the P227B code on a 2014 GMC Sierra?
Reprogramming the ECM may be required if the sensor failure has caused corrupted data or if the replacement sensor requires an update to the ECM software.
Discuss the causes and fixes for P227B 2014 GMC Sierra OBDII Code
Code P227B 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
