Merc manual v5 - Pirate4x4.Com

GM Marine EFI
Scan Tool GM EFI Compatibility
At the date of publication of this manual, the MerCruiser Scan Tool is
compatible with 1993 and newer GM Marine EFI systems being used by a
variety of marine engine manufacturers. These manufacturers include Volvo
Penta, MerCruiser, Indmar, Crusader, Flagship, Marine Power, Pleasurecraft,
and KEM. Please note that other manufacturers may also apply based upon
new product releases and MerCruiser Scan Tool software updates.
Gasoline ECMs Supported
The Marine EFI menu choice should be selected in order to service all 1993 and newer
gasoline engines produced by Volvo Penta that are equipped with Electronic Fuel
Injection. This is the menu choice you will use most often.
Upon selecting the Marine EFI menu choice, the scan tool will establish
communication with the engine’s Electronic Control Module (ECM) and
automatically determine the type of module that is present.
There are, at the time of this writing, five base GM marine system types that are
supported by the MerCruiser scan tool. Some of the system types shown below also
have revisions that were released after their initial introductions which incorporated
refinements. For example, MEFI-4 also had two follow-up revisions called MEFI-4a
and MEFI-4b. The scan tool currently supports all known GM MEFI revisions from
MEFI-1 through MEFI-5c.
Supported GM EFI system types:
MEFI 1 (introduced in 1993)
MEFI 2 (introduced in 1996)
MEFI 3 (introduced in 1998)
MEFI 4 (introduced in 2001)
MEFI 5 (introduced in 2005)
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