What does P2080 mean?
Exhaust gas temperature (EGT) sensors watch exhaust temperature around the turbo, catalyst and DPF, especially during regeneration.
The temperature reading does not make sense compared with other sensors or with how long the engine has been running.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Check engine light
- DPF regeneration disabled
- Possible reduced power
Common causes
- Sensor skewed out of calibration
- Real temperature problem (for example a stuck thermostat)
- Poor connection adding resistance
- Failed EGT sensor (common from heat cycling)
- Damaged wiring near the exhaust
- Corroded connector
How to diagnose P2080
- After a cold soak overnight, compare this sensor with the other temperature sensors. They should all read within a few degrees.
- Check that the actual temperature matches with an infrared thermometer.
- Inspect the connector for corrosion.
- Compare all EGT readings after a cold soak; they should be close to air temperature.
- Check sensor resistance and wiring.
How to fix it
- Replace the EGT sensor
- Repair wiring
Estimated repair cost
Likely repairs for P2080 run from about $100 to $350, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| Exhaust gas temperature sensor | $100 - $350 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P2080?
Moderate severity
Drivable short term, but regens may be blocked and the DPF can load up.
P2080 FAQ
What does P2080 mean?
P2080 stands for "Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 1)". Exhaust gas temperature (EGT) sensors watch exhaust temperature around the turbo, catalyst and DPF, especially during regeneration.
Can I drive with a P2080 code?
Drivable short term, but regens may be blocked and the DPF can load up.
How much does it cost to fix P2080?
It depends on the cause. The likely repairs for P2080 range from about $100 to $350 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P2080?
The most common causes are: sensor skewed out of calibration; real temperature problem (for example a stuck thermostat); poor connection adding resistance.