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Shows active code Intake Air Temperature Sensor-Voltage Low(Flash Code 2-3). When you do continuity test the sensor wires are on ports 84 and 67 of J2 connector. Book says it should ports 80 and 61.  I have checked every wire and connector to get this code out. 4.5 volts to it. What am I missing here?

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The IMT (intake manifold temp)sensor are on pins J2 80 and 61. The sensor you are checking is the  aftercooler outlet temp sensor (pins J2 84 and 67). The IMT sensor is located in the intake near the center (next to the VGT control valve). Knowing the fmi will help in what direction you need to perform diagnostics. 

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