The P247A: Exhaust Gas Temperature Out of Range Bank 1 Sensor 3 refers to a detected issue where the exhaust gas temperature reading from Bank 1 Sensor 3 is not within the expected range. This may be due to a faulty sensor or problems within the sensor circuit, which could lead to incorrect exhaust gas management, affecting engine efficiency and emissions control.
P247A – Quick Overview
| Code | Information |
|---|---|
| Meaning | P247A: Exhaust Gas Temperature Out of Range Bank 1 Sensor 3 |
| Is it serious? | Yes, incorrect exhaust temperature readings can lead to improper exhaust gas management, which may cause poor engine performance and increased emissions. |
| Possible causes | – Exhaust gas temperature reading is out of expected range for Bank 1 Sensor 3 – Faulty sensor – Issues with the sensor circuit |
| How to diagnose? | – Inspect the exhaust gas temperature sensor for Bank 1 Sensor 3 – Check the sensor circuit for any issues – Replace faulty components if needed |
P247A Meaning
The P247A: Exhaust Gas Temperature Out of Range Bank 1 Sensor 3 code indicates that the sensor responsible for monitoring exhaust gas temperature at Bank 1 Sensor 3 is providing readings that are outside of the acceptable range. This could be due to a defective sensor, problems in the wiring or connector, or other issues within the sensor circuit. Accurate temperature monitoring is essential for efficient engine performance and compliance with emissions standards.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to determine if other related codes are present. These additional codes may provide more context and assist in pinpointing the underlying issue. | OBD-II Scanner |
| Inspect Sensor and Wiring Visually | Visually inspect the exhaust gas temperature sensor for any obvious physical damage, such as cracks or deformation. Check the wiring for Bank 1 Sensor 3 for signs of fraying, corrosion, or loose connections that could impact sensor performance. | Flashlight, Safety Gloves |
| Test Sensor Output | Use a diagnostic tool to measure the real-time output from the exhaust gas temperature sensor while the engine is running. Compare these readings to manufacturer specifications to determine if the sensor is faulty or providing incorrect values. | Diagnostic Tool, Manufacturer’s Specifications |
| Check Sensor Circuit Continuity | Use a multimeter to verify continuity and resistance in the sensor circuit. Check for open circuits, shorts, or areas where resistance is outside the acceptable range, which may be contributing to the out-of-range readings. | Multimeter |
| Inspect Connectors | Ensure that all connectors to the sensor are tight and clean. If any connectors are corroded or damaged, clean or replace them as needed to ensure proper electrical contact. | Contact Cleaner, Replacement Connectors |
| Replace Faulty Sensor or Components | If testing confirms that the sensor is defective, replace it with a new, manufacturer-approved sensor. Ensure all connections are securely fastened to avoid recurrence of the issue. | Replacement Sensor, Basic Hand Tools |
| Clear Code and Test Drive | Use an OBD-II scanner to clear the P247A code and take the vehicle for a test drive. Monitor the exhaust gas temperature readings to confirm that the sensor is operating correctly. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After completing the test drive, use an OBD-II scanner again to ensure the P247A code has been resolved and no new codes are present. If the code reappears, further diagnostics may be needed. | OBD-II Scanner |
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