A Loose or worn gas cap may cause Check Engine Light to illuminate.
Average mileage: 118,294 (58,000–169,500)
17 people reported this problem
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. :)