Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
Common Symptoms
- Check engine light illuminated
- Reduced engine power or derate in diesel applications
- Poor fuel economy
- Increased exhaust emissions
- DPF regeneration issues or frequent regeneration cycles
Most Likely Root Causes
- Faulty exhaust gas temperature sensor
- Damaged or corroded wiring harness to EGT sensor
- Exhaust leaks near sensor location
- Poor electrical connection at sensor connector
- ECM software issue requiring update
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Component Location
EGT sensor bank 1 sensor 2 is typically located downstream of the catalytic converter or DPF in the exhaust system.
Manufacturer Notes
Exhaust gas temperature sensors are critical for diesel particulate filter regeneration control and aftertreatment system protection.
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