P2026: EVAP Fuel Vapor Temperature Sensor Circuit Low Voltage
Standardized SAE J2012 code · P20xx — Fuel & air metering and auxiliary emission controls
What does P2026 mean?
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.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Common causes
- High Short to ground on signal line
- Low Connector pins corroded - high contact resistance
- Low Harness chafing through insulation
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2026 on the same make and model first.
P2026 in the community
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