P2033
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
The EGT sensor at bank 1 position 2 reads above the upper limit. Usually a short to supply, an open ground or a sensor that drifted high — risk of false DPF over-temperature limp.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Signal wire shorted to supplyCommon
- Sensor drift to high readingPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Egt Sensor
- Egt Wiring
P2033 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.