Code result
P2086
Exhaust Gas Temperature Sensor Circuit Range/Performance
Moderate severity
What it means
The EGT sensor at bank 2 sensor 2 reads in range but plausibility check fails — slow response, stuck reading, or value does not track other EGT sensors during a regeneration.
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
Sensor drift
highOne of the most commonly reported causes for this code — check this first.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Sensor mounting loose - signal damping
lowLess common, but worth ruling out after the more likely causes.
Related help
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