SERVICE MANUAL NUMBER 24
FUEL INJECTION DISASSEMBLY AND REASSEMBLY
Engine Control Module (ECM)
IMPORTANT: The ECM is a sensitive electrical device, subject to electrostatic
damage. Therefore, take care not to touch connector pins when removing or
installing the module.
REMOVAL
1.
Disconnect J1 and J2 electrical connectors at engine control module (ECM).
a
d
c
b
72801
MEFI 1 Shown
a - Electrical Bracket
b - ECM
c - J1- Electrical Connector (Front Connector)
d - J2- Electrical Connector (Rear Connector)
2.
Remove ECM from electrical bracket.
CLEANING AND INSPECTION
1.
Clean the exterior of the ECM with a dry cloth being careful to avoid contact with
connector pins.
2.
3.
4.
Inspect outer surfaces for any obvious damage
Visually inspect electrical pins at both ends of ECM for straightness and corrosion.
Visually inspect J1 and J2 connectors on the wiring harness for corrosion and terminals
that may have backed of the harness.
NOTE: The ECM is a sealed electrical component. If a Code 51 check has shown it to be
defective, replace the unit with another ECM having the same part number as the original.
90-861327--1
OCTOBER 1999
Page 5E-59
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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