code is for gas cap ... but not the fix ... had to tent the car and smoke it .. found small leak in plastic fitting .. 5 dollar part fixed no issues since ... for others , that code for gas cap is also code for the entire vac system tent it was only way to find fix .. Hope this helps
I am the original and only owner of my 2003 Tracker LT and noticed that my check engine light goes on when gas cap is not on properly. Even though I replaced the cap 2 times and checked the tightness of the cap. It is annoying but really happy that's all it is.
Solution: If light goes on, check gas cap and/or replace cap yearly. Very inexpensive.
Please note, when check engine light comes on, first check gas cap then other issues. :)