P2473 Code - Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
Quick Answer
The P2473 diagnostic trouble code (DTC) refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 4. Common causes include Faulty EGT sensor, Wiring or connector issues in the EGT sensor circuit, Exhaust system leaks. 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 indicates Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4.
- Common causes
- Common causes include Faulty EGT sensor, Wiring or connector issues in the EGT sensor circuit, Exhaust system leaks.
- 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 Description
The P2473 diagnostic trouble code (DTC) refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 4. This sensor is responsible for monitoring the exhaust gas temperature in the exhaust system. The EGT sensor provides crucial data to the engine control module (ECM) to ensure optimal engine performance and emissions control.
Common Causes of P2473
- Faulty EGT sensor
- Wiring or connector issues in the EGT sensor circuit
- Exhaust system leaks
- ECM software or hardware problems
- Exhaust system damage or corrosion
Symptoms of P2473
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine misfires or rough idling
- Reduced engine power
- Increased emissions output
How to Fix P2473
- Begin by verifying the P2473 code with a diagnostic scan tool.
- Inspect the EGT sensor, wiring, and connectors for any visible damage or corrosion.
- Test the EGT sensor's resistance and voltage output to determine if it is functioning correctly.
- Replace the EGT sensor if it is found to be faulty, ensuring proper installation and connection.
- Clear the DTC and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P2473
The typical repair costs for addressing the P2473 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, replacing an EGT sensor can cost between $150 and $300, including parts and labor. Additional costs may apply if wiring repairs or other components need to be addressed. It is recommended to consult with a qualified mechanic or auto repair shop to obtain an accurate estimate based on the vehicle's specific requirements and local labor rates.
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Code P2473 Information for Specific Makes
- P2473 Chevrolet — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 Dodge — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 Ford — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
- P2473 GMC — Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4
Frequently Asked Questions about P2473 Code
What does the OBDII code P2473 mean?
P2473 indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 4, typically signaling a fault in the sensor's circuit or its readings.
What are common symptoms of code P2473?
Symptoms may include an illuminated check engine light, increased exhaust emissions, poor fuel efficiency, reduced engine performance, or the vehicle entering limp mode.
What causes code P2473 to appear?
Common causes include a faulty EGT sensor, damaged wiring or connectors, short circuits, corrosion, or issues with the vehicle's PCM (Powertrain Control Module).
Can I drive with code P2473 active?
While the vehicle may still be drivable, operating it with this code active can lead to increased emissions, reduced fuel efficiency, and potential damage to other exhaust components.
How do I fix code P2473?
Repairs may involve inspecting and repairing wiring or connectors, replacing the faulty EGT sensor, or addressing issues with the PCM if necessary.
How do I locate Bank 2 Sensor 4?
Bank 2 refers to the side of the engine opposite Bank 1 (usually the side without cylinder 1), and Sensor 4 is typically the sensor located furthest downstream in the exhaust system.
How do I diagnose code P2473?
Diagnosing involves scanning for additional codes, visually inspecting the EGT sensor and wiring, testing the sensor’s resistance, and checking for proper voltage and ground signals.
Can a bad EGT sensor cause engine damage?
A malfunctioning EGT sensor may not directly cause engine damage, but it can lead to improper exhaust gas monitoring, potentially harming components like the catalytic converter or turbocharger.
How much does it cost to fix code P2473?
Repair costs can vary depending on the vehicle and the specific issue but typically range from $100 to $300 for sensor replacement, plus labor costs.
Can a software update fix code P2473?
In some cases, a PCM software update from the manufacturer may resolve the issue, especially if the problem is related to incorrect sensor calibration or logic errors.
Discuss the causes and fixes for P2473 OBDII Code
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