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28/12/2021 12:25 am
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I have a 2011 Cadillac srx and recently I had the mass air flow sensor replace. what I looked on YouTube it said to disconnect the negative post butt he gentleman that fixed it only replace the mass airflow sensor and then he cleared the codes that was on the code reader. But he never disconnected the negative of the battery, but I see now that my check engine light is back on again and running kind of funny the way it was before.
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