Code result
P2031
Exhaust Gas Temperature Sensor Circuit
Moderate severity
What it means
The exhaust gas temperature (EGT) sensor at position 2 on bank 1 — typically downstream of the catalyst or before the DPF — reports an implausible signal. EGT sensors protect the turbocharger and DPF from over-temperature and time the regeneration cycle.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
EGT sensor failed
highOne of the most commonly reported causes for this code — check this first.
Wiring damaged by heat
mediumA plausible cause — test and verify before replacing parts.
Related help
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