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Whenever I drive under heavier load such as up hills with the ac on, it gives a P1101 Code, which Is for the MAF sensor. I have replaced it, however it continues to be a problem. The code will go away after a day or two, but when it is on it runs rougher especially during idle. Driving without the ac on, This never happens.
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I do not see any mention of a complete and full scan test so the actual failure can be discovered .. A DIAGNOSTIC trouble code is only a tool to be used as an aid for subsequent *hands-on* testing that is always required to successfully determine the source of the problem. Parts replacement based solely on a stored trouble code is usually a waste of time and money.. Good luck!
The professional scan test I’m referring to will not be concerned with any trouble codes - it is MUCH more involved and will help guide an experienced technician to a proven repair solution.. The days of do it yourself auto repair are gone..