It means that the EVAP system senses a leak in the gas cap, or filler neck. The most common problems that cause this, are a loose gas cap, or a defective gas cap.
Problem with emission system or fuel cap not installed properly
Engine that was operated with a loose , missing or bad fuel cap.
Check fuel cap: Illuminates when the fuel cap may not be properly installed. Continued driving with this light on may cause the Service engine soon warning light to come on.
if you filled up withfuel and the car was running this light comes on if not check and see if fuel cap is tight it will reset itself the fuel cap must hold a vaccume in the fuel tank
fuel cap may need to be replaced its not holding pressure and setting the light on check with dealer they can test it right there
Check for a torn seal on the cap, look for cracked or disconnected hoses around the tank and engine.
The fuel tank has a large vapor leak.
A check engine light could mean many things on a 1988 Nissan Sentra. The light could mean anything to a fuel cap not being tight enough to bad spark plugs.
No, but a defective fuel cap can set the "check engine" light to come on.
Yes, a defective fuel cap will make the check engine light come on. It will alert the car that its not getting good gas mileage.
To reset the check fuel cap warning on a 2002 Ford Ranger, first ensure that the fuel cap is securely tightened. If the cap is properly closed and the warning light remains on, disconnect the vehicle’s battery for about 15 minutes to reset the system. Reconnect the battery, and the warning light should turn off. If the light persists, consider checking the fuel cap for damage or replacing it.
I had the same problem on my 2002 Ford Explorer, after I replaced the gas cap the light turned off