P227E GMC 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 GMC 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 GMC 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 GMC?
- 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 GMC?
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 GMC 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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Information for Specific GMC Models
- P227E 2014 GMC Sierra — Barometric Pressure Sensor 2 Circuit Erratic
- P227E 2015 GMC Sierra — Barometric Pressure Sensor 2 Circuit Erratic
- P227E 2016 GMC Sierra — Barometric Pressure Sensor 2 Circuit Erratic
- P227E 2017 GMC Sierra — Barometric Pressure Sensor 2 Circuit Erratic
- P227E 2018 GMC Sierra — Barometric Pressure Sensor 2 Circuit Erratic
Frequently Asked Questions about P227E GMC Code
1. What are the common symptoms of OBDII code P227E GMC (Barometric Pressure Sensor 2 Circuit Erratic)?
- Common symptoms include rough engine idle, decreased fuel efficiency, and potential stalling or hesitation during acceleration.
2. What are the possible causes of OBDII code P227E GMC?
- The code P227E can be triggered by issues such as a faulty barometric pressure sensor, a damaged wiring harness, or a loose or corroded connector related to the sensor.
3. How can I diagnose OBDII code P227E GMC?
- Diagnosing this code typically involves using a scan tool to read the code and perform tests on the barometric pressure sensor and its circuit to identify any faults.
4. Can a DIY enthusiast repair OBDII code P227E GMC?
- While some repairs related to this code may be simple, diagnosing and repairing the underlying issue should be left to experienced individuals due to the complexity of the vehicle's sensor systems.
5. Are there any quick tips to troubleshoot OBDII code P227E GMC?
- Quick tips include checking the sensor's wiring for damage, ensuring the sensor is securely connected, and resetting the code to see if it reoccurs after driving the vehicle.
6. Is it safe to continue driving with OBDII code P227E GMC active?
- It is not recommended to continue driving with this code active, as it can lead to further engine performance issues and potential damage if left unresolved.
7. How much does it typically cost to repair OBDII code P227E GMC?
- The cost of repairing this code can vary depending on the underlying issue, but it may involve replacing the barometric pressure sensor or repairing the wiring, which can range from $100 to $300 or more.
8. Can extreme weather conditions cause OBDII code P227E GMC to trigger?
- Extreme weather conditions like temperature fluctuations or high humidity levels can potentially affect the barometric pressure sensor and contribute to the erratic readings triggering this code.
9. Will OBDII code P227E GMC affect my vehicle's emissions?
- Yes, this code can impact your vehicle's emissions performance, potentially leading to increased emissions output and failing emissions tests if not addressed promptly.
10. How long does it take to repair OBDII code P227E GMC?
- The repair time for this code can vary based on the specific issue, but it typically takes a few hours to diagnose and fix the problem with the barometric pressure sensor or related components.
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