Q
what causes engine to run rich
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Yes, an exhaust leak can cause the check engine light to come on. The leak could cause the vehicle to read the oxygen sensor and air flow incorrectly, which would result an error code and trigger the check engine light.
This is because modern vehicles use oxygen sensors to monitor the level of oxygen in the exhaust gases. These sensors help manage the engine's fuel and emissions systems. If there's an exhaust leak, these systems may not work correctly, leading to increased emissions and poor fuel economy.
Engine oil life refers to the remaining usefulness or lifespan of the engine oil in a vehicle before it needs to be replaced. It's a measure of the oil’s remaining useful life, which decreases over time due to heat, dirt, and wear. Modern cars have a system that analyzes driving conditions, trip duration, and engine temperature to estimate the oil life percentage. When this percentage becomes too low, it's time for an oil change.
To maintain optimal performance and prevent damage. the engine's movement on the stand is usually restricted. Ideally. there should be a slight but controlled 1 to 2 inch 2.54 to 5.08 cm movement during load or acceleration/deceleration. This allows the engine to absorb vibration and shock. leading to improved vehicle comfort and durability of its components. However. excessive movement could result in worn or damaged mounts. causing misalignment and further harm to parts. Thus. it is important to regularly inspect the mounting seat for any issues and address excessive movement promptly. If you notice irregular idling. crashing noises. or increased vibration. it is advisable to seek assistance from a mechanic in order to maintain your vehicle's integrity and performance.
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