Check engine came on, had it put on conputer to see why. It said it was the gas cap, replaced it, the light came back on.
Have you cleared the codes? Unhook battery for at least ten minutes. This will clear your codes. If code comes back after that then might want to have a smoke test done on system to find the leak.
did you get it rescanned and it came back with the same code, just asking because it might just be another code for something else,, what was the code you got the first time, and the 2nd time if it was differnt
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