Powertrain
generic / SAE
P2028
EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
The EVAP fuel-vapor temperature sensor signal jumps or drops out intermittently — usually a connector or chafed wire.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 28
Possible causes
- Intermittent connector or chafed wire high
- Connector with intermittent contact under vibration low
- Harness routed against vibrating component low
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 30–300 €
- Estimated time: 0.5–2 h
- Component: evap fuel vapor temp sensor
- Component: evap harness
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012