What Causes Check Engine Light To Stay On

There are a few ways to turn the reset the check engine light.

What causes check engine light to stay on.

In addition to causing your check engine light to turn on a bad o2 sensor will have a negative impact on fuel economy spark plugs or your catalytic converter. The orange check engine light is a car s way of telling you something is wrong. Possibly the silliest reason that your check engine light is on a loose damaged or missing gas cap may cause your check engine light to come on. Here is a list of the top 10 reasons why your check engine light turns on.

The first thing you should do if the check engine light is flashing or is constant on your dashboard is to read the trouble code memory. Since the 1980s many vehicles have been built to be run by the engine computer unit ecu which controls vehicle s drivetrain and auxiliary systems based on input from the vehicle s sensors this computer will make adjustments to your vehicle s performance to keep your ride running smoothly. O2 sensor performing below efficiency is a widespread problem that will cause your honda check engine light to come on. The check engine light is an irritation for many drivers but it gives you essential information about your car and shouldn t be ignored.

A loose or missing gas cap will trigger your honda check engine light to come on. So this small and inexpensive plastic part is actually a crucial part of your car s fuel delivery system. How to reset the check engine light. It s the gas cap that keeps fumes from leaving the fuel tank and keeps the whole system under correct pressure.

Here are the 10 most common issues that trigger it. For common check engine light concerns the warning light will likely stay on for a while after you perform the repair. Top 10 reasons why your check engine light turns on many people probably just ignore the check engine light when it comes on but it can be triggered by a number of issues. When the engine light is lit up and the engine control unit recognizes a problem with the engine the engine control unit will store a trouble code in the memory.

It should never be ignored. This light is the centerpiece of your vehicle s on board diagnostics system obd. Depending on the type of code set the check engine light might turn itself off after a few drives. Loose damaged or missing gas cap.

In general five common malfunctions can cause the check engine light to come on and some of them are simple to fix yourself. But why would this cause the check engine light to come on.