so while i was driving home last night, my fuel cap light randomly came on. when i got home i checked and re-tightened the fuel cap, and it still won't shut off. what could be wrong? is the light something i can just shut off with an OBDII scanner? please help, the light is really annoying, lol

 

Easy fix. Just lift the battery terminals for a few minutes. This will reset the computer.

 

You may need to get a new fuel cap as the old one may be leaking/not sealing.

I believe the whole fuel system is "closed" due to emissions controls, and if the old cap is not holding, it will set off the light.

 

just be safe with this if ur state inspection is comeing up. lol it will put ur computer into a "not ready state" and will fail the inspection unless driven so many miles 1st seen it happen to way to many people at the place i work at lol. just letting u know

 

either the fuel cap seal is worn out or you have a large leak in the evap system, large enought the computer thinks it the fuel cap. Those are the easyes leak to find on the evap system.

 

i looked at the cap and seal last night and it didnt look out of the ordinary to me, but then again maybe i dont know what i'm looking at. didn't think something like that would go bad on an 06...do i have to get a new cap at the dealer? or is that something i can pick up at autozone?

 

evap canister purge valve tends to stick open causing this ive found on ALOT of vehicles. expeically ones driven down dusty gravle roads