EGR VALVE CONSTRUCTION/OPERATION[L3 Turbo]


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•  Consists of a rotor, coils, and a spring.
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1
EGR valve
2
Main relay

•  Operates based on the signal from the PCM to drive the EGR valve stepping motor.
•  The PCM determines the optimum EGR valve opening angle based on the engine speed and intake air amount when the engine is completely warmed up and drives the EGR valve.