Mercedes Engine Light The Essential Guide to Car Health Monitoring

There are many sensors that give information to your engine to help it run more efficiently. However, bad sensor readings from components like the mass airflow ... Defective oxygen sensors must also be looked at as a cause of an engine running lean or rich. Exhaust leaks can also be a reason that a P0171 and its related ... You can be responsible for the light if you have not fully tightened the gas or oil caps or have not fully inserted the dipstick. Most Common Reasons Your Check Engine Light is On · 1. Gas Cap · 2. Oxygen Sensor · 3. Catalytic Converter · 4. Mass Airflow Sensor · 5. Spark Plugs & Wires · 6. Designed to alert drivers to computer-monitored emissions problems, the "Check Engine" light is actually part of the vehicle's emissions system. "Check Engine ... This light will come on when the engine is overheating. This could mean that coolant levels are running low, perhaps due to a leak in the system ... The check engine light is an integral component of your vehicle's onboard diagnostics system (OBD-II), which continuously monitors the performance of the engine ... It's a warning light that alerts the driver about any type of engine problems. In some vehicles, the light comes in two colors: yellow to indicate minor ... Any issue in the car that gives the check engine light, will be recorded by the car. The fault may not appear on a quick test if it isn't ... Because the car is cool still. And even though, even if it's at the operating temperature, you still have some unburned fuel. escaping from the ...