Mercury V8 300 User Manual

Terminal Test Probe Kit Bosch P/N MM‑ 46523
a - Water‑in‑fuel sensor connector
b - PCM connector B
c - PCM connector C
Connector Pin Wire Color Function PCM
53172
B
A
A Tan/purple Water‑in‑fuel signal BD4
B Black/orange Sensor ground A (–) CE1
WIF Sensor Removal and Installation
IMPORTANT: The engine mounted water‑separating fuel filter WIF sensor is not replaceable as an individual component. It
must be replaced as part of the fuel filter assembly. Refer to the appropriate service manual.
100A
BLK/ORN
TAN/PPL
BLK/ORN
B
A
H4
E1
A1
D4
M4
A1
A B
C
D E F G H
J
K
AB
C
DEFGH
J
K
1
3
2
4
L
M
L
M
A
B
C
D
E
F
G
H
1
2
3
4
A
B
C
D
E
F
G
H
M
A
4
1
A
H
1
4
65465
a
b
c
Sensors
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 5A-45

Mercury V8 300 Specifications

General

Horsepower	300 HP
Displacement	4.6 L
Full Throttle RPM Range	5200-6000 RPM
Fuel Induction System	Electronic Fuel Injection (EFI)
Gear Ratio	1.75:1
Starting	Electric
Shaft Length	20 in, 25 in, 30 in
Warranty	3-Year Limited Warranty
Engine Type	V8
Fuel Type	87 Octane
Bore x Stroke	92 mm x 86 mm