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Issues with K12 issuesm revs when cold
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<blockquote data-quote="John_D" data-source="post: 763242" data-attributes="member: 27688"><p>While it's normal for the ECU to modify the tick over revs to around 1.5K revs when the engine is cold it usually drops back to the 'correct' 1K revs once the 'cold engine' light goes out. However one day last week I found that even though the engine had warmed up and a stop to briefly shop had been done the engine revs at tick over remained at 1.5K revs. Looking for a possible cause I turned the aircon off and immediately the tick over revs dropped back to 1K. Turning the aircon straight back on still kept the tick over at the normal value......... Seems like some sort of ECU glitch associated with starting the car at sub zero temperatures with the aircon in the on position?<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite17" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /> (I had left it on the previous evening when using it to prevent interior glass misting).</p></blockquote><p></p>
[QUOTE="John_D, post: 763242, member: 27688"] While it's normal for the ECU to modify the tick over revs to around 1.5K revs when the engine is cold it usually drops back to the 'correct' 1K revs once the 'cold engine' light goes out. However one day last week I found that even though the engine had warmed up and a stop to briefly shop had been done the engine revs at tick over remained at 1.5K revs. Looking for a possible cause I turned the aircon off and immediately the tick over revs dropped back to 1K. Turning the aircon straight back on still kept the tick over at the normal value......... Seems like some sort of ECU glitch associated with starting the car at sub zero temperatures with the aircon in the on position?:confused: (I had left it on the previous evening when using it to prevent interior glass misting). [/QUOTE]
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Issues with K12 issuesm revs when cold
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