MIL Warning Lite

Thanks for all your help!  I have a friend that's a master mechanic and he  used the scanner, it it is a small hose about 3" in length  under the Jeep that a rubber gasket on  it is bad.  We are replaceing the gas cap also since it is the wrong size.  He was also nice enough to program my keyless lock key that I bought on Ebay.  You guys are pretty smart.  Everyone said it was probably something miner, and it was.

Thanks again!