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Is there a difference between EGR valve and EGR sensor in a 2004 dodge ram?
Wiki User
∙ 15y ago
A valve can be defined as a device that regulates flow, based on its ability to open, close, or obstruct passages or galleries. Therefore, the valve should be the mechanical moving device that actually permits the exhaust gasoline vapors to re-enter the combustion chamber, and that should leave the EGR sensor to be an electrical component that measures the concentration of exhaust gases, and relays the information to the ECM or PCM which then controls the EGR valve itself, and regulating the exhaust gas flow in that manner. Basically: * EGR valve is the mechanical component that physically regulates gases * EGR sensor measures concentration of gases, and instructs the EGR valve how much to regulate Hope this helps!
Wiki User
∙ 15y ago
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