OBD-II code · Powertrain (generic, extended)
P2026 EVAP Fuel Vapor Temperature Sensor Circuit Low Voltage
The EVAP fuel-vapor temperature sensor signal sits below the lower plausibility limit — short to ground or short between signal and ground inside the sensor.
Is it safe to drive with P2026?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground on signal line
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- Parts involved
- Evap Fuel Vapor Temp Sensor
Related codes
- P2024EVAP Fuel Vapor Temperature Sensor Circuit
- P2023Intake Manifold Runner Position Sensor/Switch Circuit Intermittent (Bank 2)
- P2025EVAP Fuel Vapor Temperature Sensor Performance
- P2027EVAP Fuel Vapor Temperature Sensor Circuit High Voltage
- P2028EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
- P2029Fuel Fired Heater Disabled
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.