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Home >> Subaru >> 1989 >> XT 1.8 4, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Theory/Operation - EFI >> Computerized Engine Controls >> Input Devices - Fuel Injection >> Coolant Thermosensor

Coolant Thermosensor

Coolant thermosensor is mounted on the waterpipe. This thermistor decreases resistance as coolant temperature increases. Thermosensor sends a coolant temperature signal to MPFI or SPFI control unit. Control unit uses this information to decide how much fuel to inject.

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