GM/Detroit 6.5L – Engine Management – EGR CONTROL – System Operation

The PCM monitors input from the EGR control pressure/baro sensor, APP sensors, crankshaft position sensor (engine speed), and engine coolant temperature to control the amount of exhaust gas that is recirculated back into the intake manifold. Outputs for EGR control consist of the EGR solenoid, EGR vent solenoid, and EGR valve (figure 5-47).


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