Check engine light

[Dustybarb]

Ok I'm a girl but like my 2014 Ram 1500. Check engine light came on Auto Zone checked for me code P0456 system leak detected (very small leak) so I replaced the gas cap(it was loose got new one anyway ) light did not go off (I don't know how to turn it off) I drove on and off 2 days still on .... should the light be turned off to see of the cap was the problem or could it be a part under the hood..thanks

 

[PaulHubbard]

Get a code reader from your auto supply store (around $40). You can not only read what's causing a Check Engine light, but you can clear the code(s) as well.

 

[JTARNECKI83]

You could disconnect the battery for a few minutes and that should reset the code. Gas cap is only one of the possibilities for a small evap leak. So keep in mind that you may have to take it to a shop for diagnostics. They can open and close the purge valve with a computer and see if it builds up pressure, they can also smoke it to determine small leaks.

 

[Burla]

Yes the above post is how to hard reset your system, try that. Also, when fueling up do you top off a lot?