P2031 Code - Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
Quick Answer
The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 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
- P2031 indicates Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 2 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 P2031 Description
What are the Possible Causes of the DTC P2031?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 2
- Exhaust Gas Temperature Sensor Bank 1 Sensor 2 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 1 Sensor 2 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P2031?
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 P2031 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 Makes
- P2031 Chevrolet — Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
- P2031 Dodge — Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
- P2031 Ford — Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
- P2031 GMC — Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
- P2031 Mercedes-Benz — Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
Frequently Asked Questions about P2031 Code
1. What are the common symptoms of OBDII code P2031?
- Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and the illumination of the Check Engine Light.
2. What does OBDII code P2031 mean?
- OBDII code P2031 stands for Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2, indicating a malfunction in the sensor circuit of the second oxygen sensor in the exhaust system of bank 1.
3. What are the possible causes of OBDII code P2031?
- Potential causes of P2031 include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, a failed sensor heater, or issues with the engine control module (ECM).
4. How can I diagnose OBDII code P2031?
- Diagnosing P2031 involves using an OBDII scanner to read the trouble code, checking the wiring and connectors of the exhaust gas temperature sensor, testing the sensor's resistance and voltage, and inspecting the ECM for any faults.
5. Can I drive with OBDII code P2031?
- It is not recommended to drive with OBDII code P2031 as it can lead to further damage to the engine and emissions system. It is best to address the issue promptly to avoid potential complications.
6. How do I repair OBDII code P2031?
- Repairing P2031 typically involves replacing the faulty exhaust gas temperature sensor, repairing any damaged wiring or connectors, checking and repairing the sensor heater if necessary, and clearing the trouble code with an OBDII scanner.
7. Is it possible to reset OBDII code P2031 without fixing the underlying issue?
- While you can clear the trouble code temporarily with an OBDII scanner, the Check Engine Light is likely to reappear if the underlying issue causing P2031 is not addressed. It is important to fix the problem to prevent it from recurring.
8. How much does it cost to fix OBDII code P2031?
- The cost of fixing OBDII code P2031 can vary depending on the cause of the issue, the labor rates in your area, and the vehicle make and model. Typically, the repair cost can range from $100 to $300 or more.
9. Can a mechanic help me fix OBDII code P2031, or is it a DIY repair?
- While some experienced DIYers may be able to address OBDII code P2031 themselves, it is recommended to seek the assistance of a qualified mechanic for proper diagnosis and repair, especially if you are unfamiliar with automotive electrical systems.
10. How often does OBDII code P2031 occur in vehicles?
- OBDII code P2031 is a relatively common code that can occur in vehicles with exhaust gas temperature sensors, particularly in older vehicles or those with high mileage. Regular maintenance and timely repairs can help prevent this issue.
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