Mercury MerCruiser MCM 454 Mag MPI Service Manual page 605

GENERAL SYSTEM DIAGNOSTICS
MEFI 1 - 454/502 Mag MPI and 8.2L MPI Symptom Chart (J-1 Circuits)
(Continued)
Pin
J1-28 Not Used
J1-29
J1-30
J1-31
J1-32
MEFI 1 - 454/502 Mag MPI and 8.2L MPI Symptom Chart (J-2
Circuits)
See page 5E-4 for NOTES
Pin
J2-1
J2-2
J2-3
J2-4
J2-5
Index
Page 5E-12
Downloaded from https://needmanual.com/
Circuit
Pin Pin (CKT) (CKT) Wire Wire
Function Number Color
(#)
–
MAP
814
Ground
ECM BLK/
450
Ground WHT
MAP 5V
416 GRY
Refer-
ence
Battery 440 ORN
Circuit
(CKT) (CKT)
Pin Pin Wire Wire
Number Color Ignition
Function
(#)
Not
–
Used
Not
–
Used
Not
–
Used
Not
–
Used
Injector
468
Driver GRN
Normal Voltage
Ignition Engine
ON Running
– – –
0 0
BLK
(NOTE 5) (NOTE 5)
0 0
(NOTE 5) (NOTE 5)
5V 5V
B+ B+
Normal Voltage
Engine
ON Running
– – –
– – –
– – –
– – –
LT
B+ B+
SERVICE MANUAL NUMBER 23
Diagnostic
Trouble Tro ble Possible Possible
Codes Symptoms
DTC(s)
– –
Lack Of
Perfor-
33 mance,
Exhaust
Odor, Stall
None No Start
Lack Of
Power,
Surge,
33
Rough Idle,
Exhaust
Odor
None No Start
Diagnostic
Trouble Tro ble
Possible Possible
Codes
Symptoms
DTC(s)
– –
– –
– –
– –
Rough Idle,
None
Lack Of
Power, Stall
90-861326--1 MARCH 1999