1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 225Get this manual

1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 225

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DETONATION CONTROL SYSTEM FUNCTION 1 Combustion noise (or vibration) excites the piezoelectric circuit located inside the detonation sensor, which transmits voltage to the control module2 When cylinde