Can not changing your oil cause the check engine light to come on?

Low oil pressure is a common cause of a check engine light turning on, and it can seriously interfere with your car’s performance. Low oil pressure is often the result of wear and tear in your car’s oil pump, or improper oil change procedures resulting in overfilling or getting air in the pump.

Why is the oil pressure warning light still on?

If you have refilled your engine oil with a new one but the light is still on, the culprit could be the engine pressure sensor. The sensor is connected through a circuit from the engine to the dashboard. With time the sensors get filled with dirt and this reduces their ability to detect low oil pressure effectively.

What does a yellow check engine light mean?

In addition to the check engine light, your dashboard may also indicate low oil pressure or overheating issues. Pull over and shut off the engine as soon as you can if these lights also illuminate. Some cars may have a red check engine light to alert you to stop right away, while a yellow light stands for investigation.

Why is my Check Engine light still on after filling up?

The cap is a crucial part of a car’s fuel delivery system. It notably prevents gasoline fumes from leaving the fuel tank, and it helps keep the whole system under the correct pressure. If your check engine light turns on immediately after a fill-up, pull over and make sure the cap isn’t loose — or still on your car’s roof.

What should I do if my check engine light is on?

Just to be safe, you should have a technician perform a diagnostic scan on your vehicle to pinpoint the exact issue that’s triggering your car’s check engine light, especially if you’ve already checked the simple solutions like a lose gas cap.

What to do if your check engine light turns off?

The Check Engine Light will turn off if all error codes are cleared. Some scan tools have many capabilities such as freeze frame that notes some sensor readings when a code was set and removing the codes will also remove this file. Note: In some scanners, they might have an automatic option and a “CLEAR” or “YES” button instead of “ ERASE” button.

What does the yellow check engine light really mean?

On some cars, a yellow check engine light means investigate the problem and a red one means stop right now. Try tightening your gas cap. This can often solve the problem. Keep in mind that it may take several trips before the light resets. Some vehicles have a separate indicator that warns of a loose gas cap. Reduce speed and load.

What does it mean when your check engine light says gas is leaking?

If you get an error pointing to the gas cap, it means fuel vapors are leaking out of your cap. This means it’s either cracked or just wasn’t tightened well enough.

Why does my check engine light go dark after 3 days?

The computer system in most cars keeps rechecking the problems that activate the light in the first place. If it’s a minor issue such as a glitch in the mass airflow or O2 sensor, it may fix automatically, and the light will go dark. However, if it still stares at you after three days, you have to apply the methods mentioned above to reset it.