Powertrain
generic / SAE
P2031
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 31
Possible causes
- EGT sensor failed high
- Wiring damaged by heat medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: egt sensor
- Component: egt wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012