Diesel Bombers - Rough idle at start up

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Iceman86

06-07-2014 04:13 PM

Rough idle at start up

Hey guys, new to the forum. I bought a 2001 Ram 2500 Cummins and it idles rough at start up, then smooths out but the check engine light comes on and the tach goes away. Any idea /experience on what it could be? I was thinking a possible ECM issue. Runs and drives fine in all conditions after about 15 seconds.

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