Daihatsu F300 Service Manual page 1387

EFISYSTEM
• (Cont'd)
I Check fuel pump operating sound.
I
1. Fuel pump relay
(See page EF-76.)
_I
No
2.
Fuel pump
OK
3. Wiring/connection
4.
Fusible Jinks and/or fuses
5. ECU
l
Check fuel pressure.
I
1. Fuel pump
(See page EF-n.)
I
BAD
2.
Fuel filter
OK
3. Fuel pressure regulator
(See page EF-92.)
I
Check fuel flow rate.
I
I
1. Fuel pump
(See
page
EF-79.) I
BAD
I
2.
Fuel filter
OK
•
I
Check injector operating sound.
L
J
1.
Injector wiring(s) between ECU and injector
(See page EF-97.)
I BAD
2. Injectors
OK
I
Check in.iectors fuel flow rate.
I
(See page EF-99.)
I
BAD
J
Injector- Injection condition/leakage
I
OK
I
Check EFI electronic circuit, using volt/ohm meter.
I
1.
Power to ECU
(See page EF-35.)
I
BAD
(1) Fusible link
(2) Fuses
(3) Main relay
2. Pressure sensor
3. Water temperature sensor
4 . Intake air temperature sensor
•
•
EF-19