OBD-II Code · Sensors
P2080
EGT Sensor 1 Range/Performance (Bank 1)
Severity
medium
Worth booking. It costs fuel, emissions or comfort until it is fixed.
Can you drive it
Only if running normally
A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety.
Indicative cost (USD)
$150–$500
Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
EGT sensor out of range.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
- Possible limp mode
Likely causes
- Failed sensorMost common
- Exhaust leak
Read the full diagnostic procedureP2080 sets when the upstream EGT 1 sensor on Bank 1 (typically pre-turbo or pre-DOC) reports a value that disagrees with the ECM's thermal model for…
P2080 sets when the upstream EGT 1 sensor on Bank 1 (typically pre-turbo or pre-DOC) reports a value that disagrees with the ECM's thermal model for the current fuel rate and engine load - it is a rationality fault, not an open/short fault.
Cheapest-first ladder
- at key-on engine-off, EGT 1 should sit within 10 C of intake air temp and coolant temp; if it reads 200 C cold or stuck at -40, the sensor or wiring is the issue.
- At idle after warm-up, EGT 1 should read 200 to 350 C on a diesel; under a 60 mph cruise it should be 350 to 500 C, and during commanded regen it should climb to 550 to 700 C. Caveat: a soot-coated probe tip lags real temperature by 20 to 60 seconds and will set P2080 only under transient load - cleaning the probe with a wire brush and brake cleaner often clears the code for 10,000+ miles before recurrence.
Vehicle-specific patterns2008 to 2010 Ford 6.4L Powerstroke set P2080 from the EGT 11 pre-DOC sensor soot-coating after stacked regens, Ford TSB 10-4-6 covers cleaning proced…
- 2008to 2010 Ford 6.4L Powerstroke set P2080 from the EGT 11 pre-DOC sensor soot-coating after stacked regens, Ford TSB 10-4-6 covers cleaning procedure before replacement; 2007.5 to 2012 Dodge 6.7L Cummins suffer P2080 from the pre-turbo EGT sensor cracking from vibration;
- 2014to 2018 Ram EcoDiesel 3.0L set the code from coolant intrusion at the sensor connector after a known EGR cooler failure.
Estimated repair$0 to $420.
Look up another code
P2080 — frequently asked
What does a P2080 code mean?
EGT sensor out of range.
What causes a P2080 code?
Common causes: Failed sensor; Exhaust leak.
What are the symptoms of a P2080 code?
Typical symptoms: Check engine light; Possible limp mode.
Is it safe to drive with a P2080 code?
Only if running normally. A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety. Estimated repair: $150-$500.
How do I diagnose a P2080 code?
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.
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