80
Section 3: Wire Schematics and Pin-Outs
J1-17
J1-09
J1-09
J2-18
VBAT
VBAT
J2-15
J2-09
IGN
IGN
FPR
GND
GND
MPR
MPR
IGN Switch
Main Power
Relay
Fuel Pump
Relay
GND
(POWER)
RED
BLACK
Battery
12V
-
+
GND
(POWER)
BLACK
BLUE/YELLOW
4
3
9
10
2
1
7
8
M
M
Fuel Pump
Module
Electric Lift
Pump
RED
RED
RED
RED
RED
RED
BLACK
ECM
BLACK
J1-14
ORANGE/WHITE
J2-14
J2-17
J2-07
J2-10
J2-10
1
2
SENSOR INPUTS
MPR
C
D
A
B
RED
Manifold Air
Pressure and
Temperature
Sensor
Engine Head
Temperature
Sensor
Heated
Oxygen
Sensor
TAN
BROWN
GREY/BLACK
BROWN
WHITE/GREEN
EHT SENSOR SIGNAL
O
2
SENSOR SIGNAL
O
2
SENSOR HEATER
CONTROL
J2-08
3
TAN/BLACK
MAT SENSOR SIGNAL
J2-11
1
WHITE/RED
MAP SENSOR SIGNAL
J2-16
2
RED/WHITE
5 VOLT REFERENCE
J2-10
4
BROWN
5 VOLT RETURN
5 VOLT RETURN
5 VOLT RETURN
Shielded Twisted
Cable Pair
1
2
J2-04
J2-13
23X
FLYWHEEL
CKP
Sensor
BLACK/WHITE
GREEN/WHITE
CKP HIGH
CKP LOW
Flywheel Teeth Make Up
Target Wheel
Safety Circuit Input
Stand Alone System
FUSE/RELAY BLOCK
20A Fuse
(Yellow)
15A Fuse
(Blue)
VIOLET
Models 540000/610000 Turf EFI Electrical Schematic
(Page 1 of 2)
Summary of Contents for BIG BLOCK EFI
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