1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 349Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 349

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DIAGNOSTICS
IGNITION CONTROL DISTREFHIGH BYPASS DISTREFLOW

902 RED 453 REDBLK

TEMP SENDER

A 901 TAN PNK TO IGN TO TEMP GAUGE TO TACH PUR TAN GRY A