Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23

GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
MEFI 3 - ECM Connector Chart
The following chart will aid in diagnosis of symptoms. These voltages were derived from a
known good engine. The voltages shown were done with the  electrical system intact and
operational. These are voltage requirements to operate the different circuits.
CAUTION
Do not attempt to obtain these voltages by probing wires and connectors. Serious
damage could result in  loss of engine operation or  wiring damage. Voltages can
vary with battery conditions.
a
J-1
J-2
J-1 Connector
a
J-2 Connector
a  - Shaded Area Denotes Pin Connector Location Used On Terminal
Index
Page 5E-40
90-861326--1   MARCH 1999
Product Specification
CategoriesMercury MerCruiser Manuals
Tags,
Model Year1998, 1999, 2000, 2001
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CopyrightAttribution Non-commercial
(1 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews.
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Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 SKU UPC Model
Matt on Apr 08, 2015.

Just need the manual. Wrote review. Can't technically review what I haven't seen yet...

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