P227E 2016 GMC Sierra Code - Barometric Pressure Sensor 2 Circuit Erratic
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
- P227E 2016 GMC Sierra indicates Barometric Pressure Sensor 2 Circuit Erratic.
- 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 P227E 2016 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 signal had an accumulated variation, over a 10 s sample period, of greater than 100 kPa (14.5 PSI).
What are the Possible Causes of the DTC P227E 2016 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 P227E 2016 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 P227E 2016 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.
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Frequently Asked Questions about P227E 2016 GMC Sierra Code
What does the OBD-II code P227E mean on a 2016 GMC Sierra?
The code P227E indicates an erratic signal or performance issue with the Barometric Pressure Sensor 2 circuit.
What are the common symptoms of code P227E in a 2016 GMC Sierra?
Symptoms may include poor engine performance, decreased fuel efficiency, rough idling, and illumination of the Check Engine Light.
What causes the P227E code to appear on a 2016 GMC Sierra?
Common causes include a faulty Barometric Pressure Sensor, wiring or connector issues, or a problem with the engine control module (ECM).
How do I diagnose the P227E code on my GMC Sierra?
Start by visually inspecting the sensor and wiring for damage, use a scan tool to monitor barometric pressure readings, and test the sensor and circuit for proper operation.
Can driving with a P227E code damage my GMC Sierra?
While it may not cause immediate damage, driving with this code can lead to poor performance and reduced fuel efficiency over time.
How do I fix the P227E code on a 2016 GMC Sierra?
Repairs may involve replacing the Barometric Pressure Sensor, repairing damaged wiring or connectors, or reprogramming/updating the ECM.
Where is the Barometric Pressure Sensor located on a 2016 GMC Sierra?
The Barometric Pressure Sensor is typically integrated into the vehicle’s ECM or mounted in the intake manifold area.
Can a dirty or clogged air filter cause code P227E?
No, a dirty air filter is unlikely to cause this code, as it is directly related to the Barometric Pressure Sensor circuit.
Do I need special tools to fix the P227E code?
You may need a scan tool for diagnosis and basic tools to inspect or replace the sensor and wiring.
How much does it cost to repair the P227E code on a GMC Sierra?
Repair costs can range from $100 to $300 depending on whether the sensor, wiring, or ECM requires replacement or reprogramming.
Discuss the causes and fixes for P227E 2016 GMC Sierra OBDII Code
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