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    Check Engine Code P505 - IAC System Malfunction (Covered Under Emissions Warranty!)

    I have previously posted about a problem I had with the battery voltage gauge fluctuating and having low RPM on idle. Thought it was the battery at first, but when the check engine light came on, it was code P505, which was the IAC valve. I took it to Acura of Glendale and they said that...