P2080
Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1
Exhaust / emissions
Generic OBD-II
Low
What it means
P2080 means the exhaust gas temperature sensor at bank 1, sensor 1 is reporting a temperature that is implausible or out of its expected range. It's usually a sensor, wiring, or connector fault. The engine still runs normally, but on diesels the reading is used to manage particulate-filter regeneration, so it should be repaired.
Low
Can I keep driving? Safe to drive; the engine runs normally, though on diesels it can affect DPF regeneration and emissions over time.
Common symptoms
What you'll notice
- Check-engine light on
- No obvious change in how the engine runs
- Possible incomplete DPF regeneration (on diesels)
Common causes
Most likely first
- Faulty exhaust gas temperature (EGT) sensor, bank 1 sensor 1Likely
- Open or shorted wiring in the EGT sensor circuitCommon
- Corroded or loose sensor connectorCommon
- Exhaust leak near the sensor skewing its readingLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and inspect the EGT sensor wiring and connector for damage or corrosion.
- Compare the sensor's live temperature against other EGT sensors and coolant temp at cold start; a large mismatch points to the sensor.
- Check for exhaust leaks near the sensor that could throw off its reading.
- Replace the EGT sensor if it reads implausibly with good wiring.
FAQ
Quick answers
Is it safe to drive with P2080?+
Yes. This is a temperature-sensor performance fault, so the engine runs normally. On diesels, though, it can interfere with particulate-filter regeneration, so repair it before soot builds up.
Can I just clear P2080?+
It will return until the sensor or wiring is repaired — clearing does not fix the circuit.
Related codes
Often seen with P2080
Read & clear P2080 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX