The check Engine Light alerts you when an emissions-related problem occurs with the engine control system on your vehicle. The Check Engine Light doesn’t tell you what the problem is, it only tells you when you have a problem. It only indicates that something isn’t working properly, and then you need to stop at a mechanic workshop to know what the problem is and get it fixed.
The Check Engine Light may come on and remain on continuously or flash depending on the nature of the problem. The Check Engine light usually remains on once a fault has been detected, and will remain on to remind you that a problem has occurred that needs to be investigated.
What a Flashing Check Engine Light Indicates
RED warning light indicates a problem that needs to be checked immediately;
YELLOW warning light indicates check this at your earliest convenience;
BLINKING Yellow warning lights indicates get your car checked as soon as possible. Never ignore a Check Engine Warning Light.
The Shape and Color of Check Engine Light
The Check Engine Light is also known as a malfunction indicator light. The check engine light looks different from car to car but It’s shaped like a motor and is yellow in color.
Location of the Check Engine Light
The Check Engine Light is located on the dash board of vehicles
Common Reasons the Check Engine Light Comes On are;
Though, there are hundreds of other reasons for the Check Engine Light to come on.
- The gas cap was left loose when refueling.
- Emissions-related sensors, such as oxygen sensors, have failed.
- Engine timing problems, most commonly with variable valve timing.
- Transmission failure codes.
- Engine misfire codes.
- Catalytic converter problems.
- Engine mechanical problems including worn parts.
- Fuel system problems, bad injectors, regulator, or fuel pump.
- Increased emissions, bad EGR valve, or EVAP sensor.
- Vacuum leak, hose, or gasket problems.
- Actuators or sensors sending bad signal to computer.
- Computer malfunction.
- Electrical short in a monitored circuit.
- Electrical connection problems, corrosion, or broken wires.
Whenever the computer detects an abnormal condition through one of these, it sets a DTC in memory and lets you know by illuminating the light.
A check engine light helps you keep emissions under control.