1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 269Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 269

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FUEL INJECTION SYSTEM DESCRIPTIONOPERATION
Modes Of Operation
DISTRIBUTOR MODULE MODE The ignition system operates independent of the ECMThe distributor module maintains base ignition timi

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