How To Fix Check Engine Light From Gas Cap

I put together a video discussing a problem my neighbor had with nissan maxima four door sedan after they filled the fuel tank.

How to fix check engine light from gas cap.

The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap. 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. Turn off the engine vehicle. Open the gas cap door.

Open the gas cap door. If the gas cap seal becomes damaged or worn it may cause fuel vapors from the gas tank to leak from the filler neck. 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. This may result in a gasoline odor from the vehicle as a result of the escaping vapors.

If it s for gas cap failure the fixing will take a mere few minutes. Check engine light comes on. An illuminated check engine light is another symptom of a potential issue with the vehicle s gas cap. Pay attention to the dashboard after the check engine light experience.

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.