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Power Strokes
7.3 Aftermarket
Tuning 101 - Thread Merged with Injector Posts
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[QUOTE="IHPowerstroke7.3, post: 1419382, member: 7642"] Thanks for sharing. I kinda missed my target on the post, I was kinda digging back to a year ago when the discussion was about cold starts. Since we are at that time of year again (have already had a few days below freezing) I noticed the return of my cold start smoke. I'm aware there are many parameters that would determine the idle speed. I guess the question I'm trying to ask is why is the target rpm set higher for cold starts than factory settings? I recall reading some of the other guys speaking about how their trucks started better cold with less smoke with no chip, even with larger than stock injectors, but smoked/ hazed with tuning. Tuning on or off the high idle still functions, it just doesn't change as much tuning on because it's already at 900-1000 rpm. [/QUOTE]
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