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2012 gmc issue
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<blockquote data-quote="OkdRooster" data-source="post: 3512401" data-attributes="member: 46589"><p>Make Model year, engine, gas, diesel, cng would be helpful. </p><p>on Gas vehicles Pedal all the way to floor usually puts pcm in clear flood mode, which would indicate a flooded or idle air issue. </p><p>Also curious how mass airflow sensor code was “fixed”?</p><p>Does it run and idle ok after it starts when problem is present?</p><p>Note codes not necessarily an indication of a failed part. </p><p></p><p>Todays vehicles require equipment and a skilled tech to properly diagnose and repair and guessing at whats the problem usually results in greater expense than paying someone who knows what they are doing to fix it. </p><p></p><p>Im suggesting a fuel pressure test and a good scan tool for starters to see all sensor data.</p></blockquote><p></p>
[QUOTE="OkdRooster, post: 3512401, member: 46589"] Make Model year, engine, gas, diesel, cng would be helpful. on Gas vehicles Pedal all the way to floor usually puts pcm in clear flood mode, which would indicate a flooded or idle air issue. Also curious how mass airflow sensor code was “fixed”? Does it run and idle ok after it starts when problem is present? Note codes not necessarily an indication of a failed part. Todays vehicles require equipment and a skilled tech to properly diagnose and repair and guessing at whats the problem usually results in greater expense than paying someone who knows what they are doing to fix it. Im suggesting a fuel pressure test and a good scan tool for starters to see all sensor data. [/QUOTE]
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