* Poor fuel economy: The ECU might inject too much or too little fuel, leading to wasted fuel or incomplete combustion.
* Rough idling or stalling: Inconsistent fuel delivery due to incorrect temperature readings can cause the engine to run roughly or stall, especially at idle.
* Hesitation or stumbling during acceleration: Similar to rough idling, inconsistent fuel mixture can lead to a hesitant or jerky acceleration.
* Check engine light: The ECU will likely detect a fault and illuminate the check engine light, storing a diagnostic trouble code (DTC).
* Reduced power: The engine may not produce its full power due to the incorrect air/fuel mixture.
* Increased emissions: Incomplete combustion resulting from incorrect fuel delivery can lead to higher emissions of pollutants.
* Hard starting: In some cases, a faulty IAT sensor can make it difficult to start the engine.
It's important to note that the severity of these symptoms can vary depending on the extent of the sensor malfunction and the specific vehicle. A failing sensor might initially cause subtle issues that gradually worsen over time.
