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Home >> Mercury >> 1994 >> Tracer Base, 4D Sedan, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - EEC-IV 1.9L >> Computerized Engine Controls >> Input Devices >> Exhaust Gas Recirculation Temperature (EGRT) Sensor
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Exhaust Gas Recirculation Temperature (EGRT) Sensor

EGRT sensor resistance varies with temperature. Sensor is located downstream of EGR valve and its resistance decreases as EGR flow increases. The Powertrain Control Module (PCM) uses EGRT sensor input as an indication that EGR system is functioning properly.

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