P2024
EVAP Fuel Vapor Temperature Sensor Circuit
A general fault is reported on the EVAP fuel-vapor temperature sensor circuit — open, shorted, or out of plausible range. The sensor is part of the evaporative-emission system used to monitor canister loading.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Common causes
Ordered by how often each turns out to be the cause.
- Vapor temperature sensor failedCommon
- Harness fault between sensor and PCMPossible
Parts involved
- EVAP Fuel Vapor Temp Sensor
- EVAP Canister
P2024 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.