SELVA MARINE Grey Whale 200 EFI Service Manual page 385

Symptom 1: Engine will not start (engine cranks)
Symptom 2
ECM does not
operate
Spark plug does not
spark (all cylinders)
Fuel not supplied
(all cylinders)
Vapor shut-off valve
does not close
WD: See the wiring diagram.
6AL3J11
Cause 1
Relay malfunction
Blown fuse
Short, open, or
loose connection in
ECM circuit
Engine start switch
malfunction
Crank position sen-
sor malfunction and
cam position sensor
(PORT EX) mal-
function
Short, open, or
loose connection in
ignition coil ground
circuit
High-pressure fuel Short,
pump does not loose connection in
operate high-pressure
pump circuit
Blown fuse
Relay malfunction
High-pressure fuel
pump malfunction
Low-pressure fuel Short,
pump does not loose connection in
operate low-pressure
pump circuit
Blown fuse
Low-pressure
pump malfunction
Fuel not supplied to
the fuel rails
Fixed vapor shut-off
valve
Troubleshooting the power unit
Cause 2 Checking step
— Check the relay.
— Check the fuse.
Check the ECM cir-
— cuit.
Check the engine
—
start switch.
Check
position sensor and
— cam position sen-
sor.
Check the wiring
harness continuity.
—
open, or Check the wiring
harness continuity.
fuel
Check the fuse.
Check the relay.
Check
pressure fuel pump
continuity.
open, or Check the wiring
harness continuity.
fuel
Check the fuse.
fuel Check the low-pres-
sure fuel pump con-
tinuity.
Measure the fuel
—
pressure.
Check
—
shut-off valve.
Refer
to
page
8-27
8-5
8-27
8-25
the crank 8-18
8-34
WD
WD
8-5
8-39
the high- 8-39
WD
8-5
8-39
4-6
the vapor 8-40
9-20
1
2
3
4
5
6
7
8
9