01' corolla check engine light?
a month ago the check engine light was on and i got a basic tune up for the car which took off the light. today it came back on and i think it was because of a loose gas cap since it wasnt exactly tight when i checked it out (that whole 3 clicks thing). the light is still there though so i cant think of anything else thats wrong with it. how long does the light take to turn off if the only problem was a loose gas cap?
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