Random stumbling idle - Ford Powerstroke Diesel Forum
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Old 03-07-2012, 06:43 AM
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Random stumbling idle

I have an aFe intake, dpf delete pipe and SCT livewire running canned performance tune. I ran the truck for about 120 miles with the dpf delete and no sensors plugged in (high idle was there about 1k rpm) I noticed the stumbling idle once, then realized I needed to plug in the sensors and just tie them back (dpf delete pipe w/o bungs). So with that done, randomly, when I cold start (cold start as in, the truck hasn't run for a few hours, not necessarily cold temperatures) the truck has a stumbling almost loping idle for about 30-45 seconds then no issues.... Could this be a side effect of crappy canned tunes or do I need to look at something?

The first time it did it, I plugged the sensors in the next day and also changed the fuel filters (Motorcraft of course) and it has done it twice since then. Randomly, usually after sitting 8 or so hours at work.
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Old 03-08-2012, 07:43 AM
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Bump... anyone??
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Old 03-08-2012, 08:01 AM
Almostdunfukinwidit


 

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Erik IIRC the canned SCT tunes require the sensors to be in the bungs.

Im not 100% sure on that though. Call SCT tech support
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