Checking The Low-Pressure Fuel Pump And High-Pressure Fuel Pump; Checking The High-Pressure Fuel Pump Relay - SELVA MARINE Grey Whale 200 EFI Service Manual

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ELEC
Checking the low-pressure fuel
pump and high-pressure fuel pump
1. Check the fuses for continuity. Replace if
there is no continuity.
NOTE:
For the location of the fuse, see Chapter 8,
"Fuse holder."
2. Check the operation of the low-pressure
fuel pump and high-pressure fuel pump
using the "Stationary test" of the YDIS
and listen for the operating sound.
3. Disconnect the low-pressure fuel pump
coupler 1 and high-pressure fuel pump
coupler 2.
4. Measure the resistance of the fuel pump
motors.
1
1
Low-pressure fuel pump resistance
1 (reference data):
1.3–4.0 Ω
High-pressure fuel pump resistance
2 (reference data):
0.5–10 Ω
5. Connect the low-pressure fuel pump cou-
pler 1 and high-pressure fuel pump cou-
pler 2.
8-39
Electrical system
2
2
S6AL8620
Checking the high-pressure fuel
pump relay
1. Remove the high-pressure fuel pump
relay 1 and check it.
NOTE:
The high-pressure fuel pump relay and main
relay are the same type of relay. To check
the relay, see Chapter 8, "Checking the main
relay and electronic throttle valve relay."
2. Connect the tester leads to terminals 2
and 3 as shown, turn the engine start
switch to "ON," and then measure the
voltage within 5 seconds after turning the
switch to "ON."
2
NOTE:
When the engine start switch is turned to
"ON," voltage is supplied to the high-pressure
fuel pump relay and the high-pressure fuel
pump operates. After 5 seconds, the power
to the relay turns off and the fuel pump stops.
Terminal 2 – Terminal 3:
12 V (battery voltage)
1
S6P28180
3
S6AL8630
6AL3J11