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Engine-Codes – Generic – P2488

P2488 Code - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5

Quick Answer

The P2488 diagnostic trouble code (DTC) refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 5. Common causes include Faulty EGT sensor, Damaged or corroded wiring/connectors in the EGT sensor circuit, ECM malfunction. 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
P2488 indicates Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5.
Common causes
Common causes include Faulty EGT sensor, Damaged or corroded wiring/connectors in the EGT sensor circuit, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2488 Description

The P2488 diagnostic trouble code (DTC) refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 5. This sensor is responsible for monitoring the exhaust gas temperature in the specific cylinder bank and sensor location. The EGT sensor plays a crucial role in ensuring the optimal performance of the vehicle's engine and emissions system. When the EGT sensor circuit is not functioning within the expected range or is not performing adequately, it can lead to various performance issues and potentially cause long-term damage to the engine.

OBDII Code P2488 - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5
P2488 Code - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5

Common Causes of P2488

  1. Faulty EGT sensor
  2. Damaged or corroded wiring/connectors in the EGT sensor circuit
  3. ECM malfunction
  4. Exhaust system leaks or damage affecting EGT sensor readings
  5. Engine overheating causing EGT sensor failure

Symptoms of P2488

  1. Check Engine Light illuminated on the dashboard
  2. Decreased engine performance or power
  3. Increased fuel consumption
  4. Rough idling or engine misfires
  5. Emission-related issues, such as failed emissions test

How to Fix P2488

  1. Perform a thorough diagnosis using a scan tool to confirm the P2488 code and pinpoint the specific issue with Bank 2 Sensor 5.
  2. Inspect the EGT sensor, wiring, and connectors for any damage or corrosion. Replace any faulty components as needed.
  3. Check and repair any exhaust system leaks that may be affecting the EGT sensor readings.
  4. Clear the DTC from the ECM memory and reset the system to see if the issue persists.
  5. Test drive the vehicle to ensure that the EGT sensor is now operating within the expected range and that all symptoms have been resolved.

Cost to Fix P2488

The cost of repairing a P2488 code can vary depending on the specific cause of the issue and the labor rates in your area. Typically, replacing a faulty EGT sensor or repairing wiring/connectors can range from $150 to $300, including parts and labor. However, if the ECM needs to be replaced or if there are additional complications, the cost could be higher. It's advisable to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can vary, so it's essential to inquire about these factors when obtaining a repair quote.

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Code P2488 Information for Specific Makes

  • P2488 Chevrolet — Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5
  • P2488 Dodge — Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5
  • P2488 Ford — Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5
  • P2488 GMC — Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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