Code P2006 (IMRC)
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Code P2006 (IMRC)
Had plugs changed on 2007 5.4 and this code was still showing The shop said they had neve seen this code. Truck seems to run OK with no check engine lights or anythig, Can any of you guys tell me what this is?
Thanks, Mac
Thanks, Mac
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Joined: Dec 2006
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From: Joplin MO
Your engine has CMCV instead of IMRC, but that's what the code is referring to. Something may be wrong with the one on the passenger side. Clear the code and see if it comes back.
At lower speeds and lighter loads, the new Charge Motion Control Valves (CMCV) - located at the end of each intake runner - are specially shaped to speed up the intake charge and induce a tumble effect in the combustion cylinder. This causes the fuel to mix more thoroughly, and to burn quickly and efficiently, with reduced emissions, particularly at idle.
The CMCVs are controlled by an electronic motor, and open at a predetermined point as engine speed increases. At higher engine speeds, they do not affect the intake charge at all. This allows undisturbed maximum flow into the combustion chambers at wide-open throttle.
The CMCVs are controlled by an electronic motor, and open at a predetermined point as engine speed increases. At higher engine speeds, they do not affect the intake charge at all. This allows undisturbed maximum flow into the combustion chambers at wide-open throttle.