P2082: Exhaust Gas Temp Sensor Circuit Range/Performance Bank 2 Sensor 1
The P2082 code indicates that the Engine Control Module (ECM) has detected a malfunction in the exhaust gas temperature (EGT) sensor circuit for Bank 2, Sensor 1. This sensor monitors the temperature of exhaust gases entering the diesel particulate filter (DPF) or catalytic converter. The ECM compares the sensor's signal to expected values; if the signal is out of range or the sensor response is too slow, the code sets. Common causes include a faulty EGT sensor, wiring issues, or exhaust leaks. This code is often accompanied by reduced engine performance and illumination of the check engine light.
01. Most Common Causes
- Faulty exhaust gas temperature sensor
- Damaged or corroded wiring/connectors
- Exhaust leaks near the sensor
- ECM software issues
02. Symptoms You Will Notice
- Check Engine Light on
- Reduced engine power or limp mode
- Poor fuel economy
- Possible DPF regeneration issues
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect the EGT sensor and wiring for damage or corrosion.
Step 3: Test sensor resistance and compare to manufacturer specs.
Step 4: Check for exhaust leaks upstream of the sensor.
Step 5: If all else fails, replace the sensor and clear codes.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is generally not recommended to drive long distances, as the issue can lead to reduced performance and potential damage to the DPF or catalytic converter. Limp mode may activate, limiting speed.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for the sensor part, plus labor if you have a mechanic install it. DIY replacement can save on labor costs.