Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 471Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 471

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FUEL INJECTION DESCRIPTIONS AND SYSTEM OPERATION
KNOCK SENSOR (KS) MODULE (MEFI AND MEFI MODELS ONLY)
When the key switch is turned on, 12 volts are supplied to the KS module terminal thro