P0116Severity: Low
P0116 – Engine Coolant Temperature (ECT) Sensor Range/Performance
The coolant temperature sensor reads an unexpected value.
What it means
The ECT sensor's reading is inconsistent with the engine's real state. Warm-up behavior and the fuel map can be affected.
Symptoms
- Check-engine light
- Inconsistent temp gauge
- Changed fuel use
Common causes
- Faulty ECT sensor
- Low coolant level
- Air pocket
- Wiring issue
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Frequently asked questions
What does trouble code P0116 mean?
P0116 – Engine Coolant Temperature (ECT) Sensor Range/Performance. The ECT sensor's reading is inconsistent with the engine's real state. Warm-up behavior and the fuel map can be affected.
Can I drive with a P0116 code?
It's usually not urgent, but finding and fixing the cause matters for emissions and fuel economy.