P0549 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1
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 2 Sensor 1, Exhaust Gas Temperature Sensor Bank 2 Sensor 1 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0549 Chevrolet indicates Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 1, Exhaust Gas Temperature Sensor Bank 2 Sensor 1 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 1 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0549 Chevrolet Description
What are the Possible Causes of the DTC P0549 Chevrolet?
- Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 1
- Exhaust Gas Temperature Sensor Bank 2 Sensor 1 harness is open or shorted
- Exhaust Gas Temperature Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Exhaust leaks
- Excessive particulate matter buildup on sensor
How to Fix the DTC P0549 Chevrolet?
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 P0549 Chevrolet 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 P0549 Chevrolet Code
1. What does the OBDII code P0549 mean for a Chevrolet?
P0549 indicates a high voltage circuit issue with the Exhaust Gas Temperature (EGT) Sensor on Bank 2 Sensor 1.
2. What are the symptoms of code P0549 on a Chevrolet?
Symptoms may include the Check Engine Light turning on, reduced fuel efficiency, poor engine performance, or the engine running hotter than normal.
3. What causes the P0549 code to appear on a Chevrolet?
Common causes include a faulty EGT sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning PCM (Powertrain Control Module).
4. How do you diagnose code P0549 in a Chevrolet?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the EGT sensor and its wiring for damage, and testing the sensor's voltage and resistance.
5. Can I drive my Chevrolet with the P0549 code?
It’s not recommended to drive with this code for extended periods, as it may affect engine performance and increase the risk of overheating or fuel inefficiency.
6. How is the P0549 code typically fixed on a Chevrolet?
Repairs may include replacing the faulty EGT sensor, repairing damaged wiring or connectors, or updating/reprogramming the PCM if necessary.
7. Where is Bank 2 Sensor 1 located on a Chevrolet?
Bank 2 refers to the side of the engine opposite Bank 1 (usually the side without cylinder 1), and Sensor 1 is located before the catalytic converter on that side.
8. How much does it cost to fix the P0549 code on a Chevrolet?
Repair costs can vary but typically range from $150 to $300, depending on whether you need to replace the sensor or perform additional wiring repairs.
9. Can a dirty EGT sensor cause the P0549 code?
While dirt alone is unlikely to cause this specific code, a malfunctioning or damaged sensor due to contamination could lead to this issue.
10. Does the P0549 code affect emissions testing?
Yes, the P0549 code can cause your vehicle to fail an emissions test because it may affect the proper monitoring of exhaust gas temperatures.
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