This may result in a gasoline odor from the vehicle as a result of the escaping vapors.
How to fix check engine light from gas cap.
If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck.
The gas cap code and diy check engine light car repair the gas cap code is a common diagnostic trouble code that might turn your check engine light on.
The door is usually locked you ll find a push button to unlock it.
Once you ve noticed the check engine flashing don t worry.
If it s for gas cap failure the fixing will take a mere few minutes.
The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap.
If you find that the light keeps coming on and goes off again once you tighten the gas cap then your gas cap is too loose.
I put together a video discussing a problem my neighbor had with nissan maxima four door sedan after they filled the fuel tank.
Pay attention to the dashboard after the check engine light experience.
Check engine light comes on.
Turn off the engine vehicle.
An illuminated check engine light is another symptom of a potential issue with the vehicle s gas cap.
You can either tighten the cap and wait for the system to reset itself when it determines the problem is fixed or you can use an obd ii code scanner to manually reset the system.