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  • 3 cylinder high idle intermittently switching to 6

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    So it finally got cold enough to kick on the 3 cylinder high idle. After it runs for about 5 minutes I noticed that it intermittently switches to 6 cylinder high idle. I've had high idle for 3 years and this has never happened. When it does it it only does it for a second or less then it goes right back to 3 cylinder. Once it starts it does it 5-10 times per minute. I have searched on many forums with no findings of similar symptoms. Wondering if anyone has any idea on possible causes or has seen any threads with info on the topic.I'm going to attach a data log from quadzilla. It happened multiple times here 

    3cylhi.csv


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