GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
MEFI 2 - 7.4L MPI Symptom Chart (J-1 Circuits) (Continued)
Circuit
(CKT)
Function Number Color Ignition
Normal Voltage
Diagnostic
Trouble
Codes
DTC(s)
Pin
Wire
Possible
Symptoms
Pin
Engine
(#)
ON
Running
J1-27 Not Used
J1-28 Not Used
–
–
–
–
–
–
–
–
–
–
–
–
Lack Of
Perfor-
mance, Ex-
haust Odor,
Stall
0
0
MAP
J1-29
814
450
BLK
BLK
33
Ground
(NOTE 5) (NOTE 5)
0
0
ECM
J1-30
None
No Start
Ground
(NOTE 5) (NOTE 5)
Lack Of
Power,
Surge,
Rough Idle,
Exhaust
Odor
MAP 5V
Refer-
ence
J1-31
416E
GRY
5V
5V
33
J1-32
J2-1
J2-2
J2-3
J2-4
Battery
440
–
ORN
B+
–
B+
–
None
No Start
Not Used
Not Used
Not Used
Not Used
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Rough Idle,
Lack Of
Power, Stall
Injector
Driver
DRK
GRN
J2-5
468
B+
B+
None
Ignition
Control
Ref. Low
0
0
RED/
BLK
Poor Perfor-
mance
J2-6
J2-7
J2-8
463
901
430
None
None
None
(NOTE 5) (NOTE 5)
Port Fuel
Jumper
BLK
–
5V
0
–
–
Ignition
Control
Ref. High
PUR/
WHT
1.6V
No Restart
Fuel
Pump
Relay
Driver
DK
GRN/
WHT
J2-9
465
B+
None
No Start
–
(NOTE
1&5)
J2-10 Not Used
–
–
–
0
–
0
–
Coolant
Over
temp.
Improper
Audio Warn-
ing
DK
GRN
J2-11
112
NONE
Index
Page 5E-28
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 |
(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. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...