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Discussion Starter #1
In the summer my mechanic put a cold air intake and I noticed that when its cold like in morning it start but doesn't go right up to 1200 goes up slowly. Charging system is fine.Its 2012 6.0 2500 HD original plugs and wires Fuel injection system never cleaned The check engine light came on then it went off any ideas ?Oh it has low miles and it not on the highway much I'm gonna try to get it to mechanic . I use sea foam on occasion
 

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Put the original GM "cold air" intake back on it and the problem may be solved. When you modify the volumetric intake flow you have to adjust for it. CAI usually only come into play at wide open throttle which I don't think you do much.
 

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I think they did that its at the shop now so its a wait and see
 
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