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Exhaust gas temperature
P2080 Exhaust Gas Temperature (EGT) Sensor Circuit Range/Performance (Bank 1 Sensor 1)
The ECU compares the EGT sensor reading with the modelled exhaust temperature and with other temperature sensors, for example after a cold start. P2080 is set when the reading is implausible but still within its electrical range.
Common causes
- Drifting or ageing EGT sensor
- Sensors installed in swapped positions
- Exhaust leak near the sensor
- Poor connection or high resistance in the wiring
Typical symptoms
- Check engine light (MIL) on
- DPF regeneration disabled or not completed
- Reduced power or limp mode on some vehicles
P2080 and NuoVolta
When the DPF and its temperature sensors have been removed for off-road or motorsport use, where permitted by law, the NuoVolta DPF / ADV Removal solution adjusts the ECU calibration and the DTC removal feature can disable this code. Otherwise, compare the sensor readings and replace the faulty sensor first.
Diagnose and repair real faults first. Removing or disabling emission systems is only permitted where allowed by law, for example for off-road or motorsport use.