Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 691Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 691

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DIAGNOSTICS
CIRCUIT DESCRIPTION:
The Intake Air Temperature (IAT) Sensor uses thermistor to control the signal voltage to the ECMThe ECM applies voltage on CKT 472 to the sensorWhen the in