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2012 ISX 12 CM2250 - rough under throttle
03-26-2022, (Subject: 2012 ISX 12 CM2250 - rough under throttle ) 
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Contributing V.I.P.tree98 Offline
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RE: 2012 ISX 12 CM2250 - rough under throttle
One thing that stands out to me is that it puts out this grayish unbearable smoke. The dpf should be gobbling that up, it shouldn't be getting through if the dpf is in good working order.

Have you pulled the exhaust pipe off behind the turbo before the dpf and ran it to see what it looks like?

I don't know how it could be overfueling if it passes a leakdown test, is it using oil? Or making oil?
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RE: 2012 ISX 12 CM2250 - rough under throttle - tree98 - 03-26-2022



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