1. Incorrect Fuel Injection Timing: The camshaft sensor plays a crucial role in determining when fuel is injected into the engine's cylinders. If the sensor is not functioning properly, it can provide incorrect timing information to the engine control unit (ECU), resulting in fuel injection that is either too early or too late. This disrupts the optimal combustion process and leads to reduced fuel efficiency.
2. Incomplete Combustion: Improper fuel injection timing can cause incomplete combustion of fuel in the engine. When the fuel is not injected at the ideal time, it may not mix properly with the air, leading to incomplete combustion and a decrease in engine efficiency. This results in lower fuel economy.
3. Increased Engine Friction: A malfunctioning camshaft sensor can also contribute to increased engine friction. If the camshaft timing is off, it can put extra stress on engine components, such as the pistons and bearings, causing them to work harder and generate more friction. This increased friction leads to reduced engine efficiency and lower fuel economy.
4. Check Engine Light: Additionally, a faulty camshaft sensor can trigger the check engine light on your dashboard. While the check engine light can indicate various problems, it often signifies an issue with the engine's performance and efficiency, indirectly leading to lower mpg.
It's important to note that a bad camshaft sensor is just one of many potential factors that can affect fuel economy. Other factors, such as driving habits, tire pressure, vehicle weight, and overall engine condition, also play a role in determining mpg.