today my check gas cap light came on(while on my way to a junk yard lol), i got one from the yard and it still diddnt go off. so i went and bought a new cap and put it on, still the light remains.......i guess the last thing to say would be HELP..... cuz im lost

 

Before setting an OBDII trouble code for a large vapor leak in the evaporative emission system, the Check Fuel Cap light may come on to alert the driver. Now that you have replaced the cap, try resetting the PCM by removing the neg battery cable and turning on the headlight switch briefly. After reinstalling the battery cable, the light should be out. If the cap light returns or if a CEL comes on, you may have a large leak somewhere else in the system.

 

yea what he said..... lol

 

im at work right now so ill be f'n around with it tonight when i get home, if the light does not turn off where are the other areas to check, i did a search and found out about the 2 hoses under the hood on drivers side. thanx for the info so far and any other input will be much appretiated.

 

When I got that light I found that the vacuum line going to the charcoal canister purge valve (right side of engine compartment) had worked loose. I plugged the two lines back and the light went away.