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I'm a newbie with mustangs. so i need to ask a question. What is the smog pump used for, and if i don't need it can i eliminate it without having my check engine light on?
It's used for emissions. Deleting it is not uncommon but you probably won't be abel to pass inspection without it. I'm not too sure on the engine light though.
the check engine light wont come onbut like golden eye said you might not pass smog it all depends on your area. I was passed with no smog and no cats and they didnt say a word
2 part question.
