P2473 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
Quick Answer
The P2473 code for Chevrolet vehicles refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit on Bank 2 Sensor 4. Common causes include Faulty EGT Sensor: The most common cause of the P2473 code is a faulty EGT sensor on Bank 2 Sensor 4, Wiring Issues: Damaged or corroded wiring connections to the EGT sensor can cause circuit malfunctions and trigger the code, ECM Malfunction: A malfunctioning engine control module (ECM) may fail to receive accurate signals from the EGT sensor, leading to the code being triggered. 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
- P2473 Chevrolet indicates Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.
- Common causes
- Common causes include Faulty EGT Sensor: The most common cause of the P2473 code is a faulty EGT sensor on Bank 2 Sensor 4, Wiring Issues: Damaged or corroded wiring connections to the EGT sensor can cause circuit malfunctions and trigger the code, ECM Malfunction: A malfunctioning engine control module (ECM) may fail to receive accurate signals from the EGT sensor, leading to the code being triggered.
- 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.
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Code P2473 Chevrolet Description
The P2473 code for Chevrolet vehicles refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit on Bank 2 Sensor 4. This sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. The EGT sensor plays a crucial role in ensuring the engine operates efficiently and within safe temperature limits. When this sensor malfunctions or fails, it can lead to a variety of performance issues and potential long-term damage to the vehicle.
Common Causes of P2473 Chevrolet
- Faulty EGT Sensor: The most common cause of the P2473 code is a faulty EGT sensor on Bank 2 Sensor 4.
- Wiring Issues: Damaged or corroded wiring connections to the EGT sensor can cause circuit malfunctions and trigger the code.
- ECM Malfunction: A malfunctioning engine control module (ECM) may fail to receive accurate signals from the EGT sensor, leading to the code being triggered.
- Exhaust System Leaks: Leaks in the exhaust system can affect the readings of the EGT sensor, causing it to malfunction.
- Sensor Placement: Improper placement or installation of the EGT sensor can also lead to issues with temperature readings and trigger the code.
Symptoms of P2473 Chevrolet
- Check Engine Light: The most common symptom associated with the P2473 code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Performance: A faulty EGT sensor can cause the engine to run poorly, leading to decreased power and acceleration.
- Increased Fuel Consumption: Incorrect temperature readings from the EGT sensor can result in the engine running rich, leading to higher fuel consumption.
- Rough Idling: The engine may idle roughly or inconsistently due to inaccurate temperature readings from the EGT sensor.
- Emission Issues: A malfunctioning EGT sensor can cause the vehicle to produce higher emissions than normal, potentially causing it to fail emissions tests.
How to Fix P2473 Chevrolet
- Diagnose the Issue: Begin by using a diagnostic scanner to retrieve the trouble codes and identify the specific EGT sensor on Bank 2 Sensor 4 that is causing the problem.
- Inspect Wiring: Check the wiring harness connected to the EGT sensor for any signs of damage, corrosion, or loose connections. Repair or replace any faulty wiring as needed.
- Replace EGT Sensor: If the EGT sensor is found to be faulty, remove the old sensor and install a new one in its place. Ensure proper placement and connection to the wiring harness.
- Clear Codes: After completing the repair, clear the trouble codes from the ECM using the diagnostic scanner to reset the check engine light.
- Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.
Cost to Fix P2473 Chevrolet
The cost of repairing the Exhaust Gas Temperature Sensor Circuit on Bank 2 Sensor 4 can vary depending on the make and model of the vehicle, as well as the labor rates in your area. Typically, the cost of replacing an EGT sensor can range from $150 to $300, including parts and labor. Additional costs may apply if there are wiring issues or other components that need to be replaced. It's recommended to consult with a certified mechanic or auto repair shop to get an accurate estimate based on your specific vehicle and location. Keep in mind that labor rates can vary, with hourly rates ranging from $80 to $150 at most auto repair shops.
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Frequently Asked Questions about P2473 Chevrolet Code
1. What are the common symptoms of OBDII code P2473 in a Chevrolet?
- Common symptoms include poor engine performance, reduced fuel efficiency, and illuminated Check Engine Light.
2. What does the OBDII code P2473 Chevrolet indicate?
- The code P2473 indicates a problem with the Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.
3. What are the possible causes of OBDII code P2473 in a Chevrolet?
- Possible causes include a faulty exhaust gas temperature sensor, wiring issues, or a malfunctioning sensor circuit.
4. How can I diagnose the OBDII code P2473 in my Chevrolet?
- Diagnosis typically involves using an OBDII scanner to read the code, checking the sensor and its wiring for damage, and testing the sensor's resistance.
5. Can I still drive my Chevrolet with OBDII code P2473?
- It is not recommended to drive your vehicle with this code as it can lead to further damage and poor performance.
6. How can I repair OBDII code P2473 in my Chevrolet?
- Repair involves replacing the faulty Exhaust Gas Temperature Sensor Bank 2 Sensor 4 and addressing any wiring issues or circuit malfunctions.
7. Are there any DIY tips for fixing OBDII code P2473 in a Chevrolet?
- DIY tips include ensuring proper sensor installation, checking for loose connections, and following the manufacturer's repair guidelines.
8. How much does it cost to fix OBDII code P2473 in a Chevrolet?
- The cost of repair can vary depending on the extent of the issue, but it typically involves the cost of a new sensor and labor for installation.
9. Can OBDII code P2473 cause damage to my Chevrolet if not addressed promptly?
- Ignoring this code can lead to increased emissions, reduced engine efficiency, and potential damage to other components over time.
10. How long does it take to repair OBDII code P2473 in a Chevrolet?
- Repair time can vary based on the mechanic's workload and availability of parts, but it generally takes a few hours to replace the sensor and address any related issues.
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