MasterTuning Fault code dictionary (DTC)

P2080 — Exhaust Gas Temperature Sensor Circuit Range/Performance

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThe engine computer has detected an implausible signal from the exhaust gas temperature sensor, usually located near the diesel particulate filter. This means the sensor is sending data that does not match the expected operating temperature range, often due to internal degradation or wiring issues.
FamilyPowertrain (P)

Typical symptoms

Check Engine light is illuminated on the dashboard
Possible activation of the limp mode or reduced engine power
Potential increase in diesel particulate filter regeneration frequency

Common causes

Faulty exhaust gas temperature sensor
Damaged, melted, or corroded wiring harness near the exhaust
Loose electrical connector at the sensor
Internal engine running issues causing genuinely abnormal exhaust temperatures

What to do

You should have a technician inspect the sensor wiring and connector first, as they are exposed to extreme heat and vibration under the car. It is best to address this promptly to ensure proper emissions system operation and prevent secondary issues with the particulate filter.

Frequently asked questions

What does code P2080 mean?

Exhaust Gas Temperature Sensor Circuit Range/Performance. The engine computer has detected an implausible signal from the exhaust gas temperature sensor, usually located near the diesel particulate filter. This means the sensor is sending data that does not match the expected operating temperature range, often due to internal degradation or wiring issues.

Can I keep driving with code P2080 active?

With caution: limp mode possible, have it checked soon

Common causes — P2080

Faulty exhaust gas temperature sensor Damaged, melted, or corroded wiring harness near the exhaust Loose electrical connector at the sensor Internal engine running issues causing genuinely abnormal exhaust temperatures

How do you fix code P2080?

You should have a technician inspect the sensor wiring and connector first, as they are exposed to extreme heat and vibration under the car. It is best to address this promptly to ensure proper emissions system operation and prevent secondary issues with the particulate filter.

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