Download Outboard Engine Supplement

Mercury Outboard 3.0L Fuel ECM
3.0L EFI Fuel ECM
The scan tool is equipped with the ability to diagnose Mercury’s 3.0L outboard EFI
system. This system incorporates a Denso Fuel ECM which is capable of providing a
variety of diagnostic information to the scan tool.
Connecting to the 3.0L Fuel ECM
Connection of the scan tool to the 3.0L Fuel ECM requires the use of adapter #94011
as shown below.
#94011 4-pin Adapter
Be sure the Engine’s Ignition Switch is in the OFF position before proceeding
with the following steps.
1) Be sure the engine is turned OFF.
2)
Remove the 3.0L engine cover per Mercury’s recommended procedure
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