My check engine keeps coming on when my gas gets down to about 1/2 tank. I filled the tank up and cleared the check engine light by unpluging the neg battery cable for a few minutes. The light came back on when the fuel level got back to about 1/2 tank empty. Can some one please explain to me what's going on and how to resolve this.

 

Gas cap on tight?

 

as tight as it would go. The gasket looks a little worn.

 

try replqacing the gas tank cap, its a cheap try to fix the problem , or here is a wild idea,,,,,read the code and see where that leads...

 

Thanks. I bought the cap and cel went away.

 

Woohoo!

 

darn light keeps coming back. i change the gas cap. small evap leak.

 

Check the vac lines as a starting point...