Powertrain
generic / SAE
P2084
Exhaust Gas Temperature Sensor Range/Performance (Bank 1 Sensor 2)
The bank 1 sensor 2 EGT reading deviates from the expected ratio against the upstream EGT sensor or modeled exhaust temperature. Confuses DPF regeneration control and may force a forced regen.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 84
Possible causes
- Sensor aged or drifting high
- DPF heavily loaded — non-physical temperature gradient medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: egt sensor
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012