Check Engine Light Gas Cap Fix

The gas cap is a part of the vehicle s evaporative emissions system and can cause problems with the system if it has an issue.

Check engine light gas cap fix.

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

An improperly sealing fuel cap may cause an evap system leak which will set off the check engine light when the the computer detects the leak. 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. 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.

Turn off the engine vehicle. The check engine light can also be set off by a wide variety of other. If it s for gas cap failure the fixing will take a mere few minutes. The door is usually locked you ll find a push button to unlock it.