choochi1

The check engine light came on ,not blinking just solid,i am hearing a burp when driving almost every 30 seconds,that turn out to be be from the gas tank fill where the inner cap was being sucked open by what i would assume would be the fuel pump,when i pullover and press my finger in and release it,the noise stops but returns after a few days,any one any idea if this and the check engine light on are connected? thanks Jimmy.