Exhaust Gas Temperature Out of Range Bank 2 Sensor 2
The P247D code indicates that the exhaust gas temperature (EGT) sensor on Bank 2, Sensor 2 (downstream of the diesel particulate filter or catalytic converter) is reporting a temperature outside the expected range. This can be caused by a faulty sensor, wiring issues, or actual exhaust temperature problems. The sensor is used for emissions control and regeneration monitoring.
1. Most Common Causes
- Faulty EGT sensor
- Wiring or connector damage
- Exhaust leak near sensor
- Engine running too hot or too cold
2. Symptoms You Will Notice
- Check Engine Light on
- Reduced fuel economy
- Possible limp mode
- Failed emissions test
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect EGT sensor wiring and connector for damage.
Step 3: Compare sensor reading with known good values using a scan tool.
Step 4: Test sensor resistance and voltage per manufacturer specs.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is generally safe for short trips, but prolonged driving may cause damage to the DPF or catalytic converter. It's best to diagnose and repair promptly.
How much does it cost to fix?▼
Replacing the EGT sensor typically costs $150-$400 including parts and labor, depending on vehicle make and model.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.