GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
Chart A-5 (3 of 3): Fuel System Electrical Test
Step
Action
Value(s)
Yes
No
1.
Check for plugged fuel filter,
vapor
lock
condition,
restricted fuel lines, discon-
nected hoses, and proper
fuel level.
9
–
2.
If a problem is found, repair
as necessary.
Go to OBD
System
Check
Was A Problem Found?
Go to Step 13
–
Locate and repair open in CKT
339 or CKT 902.
Is Action Complete?
Go to OBD
System
Check
10
11
–
–
Locate and repair short to ground
in CKT 339 or CKT 120. Also
check for contamination in fuel
lines or fuel tank. If OK, replace
fuel pump and fuse.
Go to OBD
System
Check
–
Is Action Complete?
Locate and repair open in CKT
120 or CKT 150.
Was A Problem Found?
Go to OBD
System
Check
12
13
14
15
–
–
–
–
Go to Step 13
–
Replace faulty fuel pump.
Is Action Complete?
Go to OBD
System
Check
Locate and repair open in CKT
450.
Is Action Complete?
Go to OBD
System
Check
–
–
Replace faulty ECM.
Is Action Complete?
Go to OBD
System
Check
Index
Page 5E-80
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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