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Home >> Infiniti >> 1993 >> Q45 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Fuel Temperature Sensor (J30)
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Fuel Temperature Sensor (J30)

Fuel temperature sensor is built into the fuel tube and senses fuel temperature. When fuel temperature is higher than 167°F (75°C) and vehicle is being started, ECM turns PRVR control solenoid on. This causes fuel pressure to be raised, improving hot engine starting.

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