Daihatsu F300 Service Manual page 1392

EFISYSTEM
(Coni' d)
•
I
Check throttle position sensor.
I I
Throttle position sensor
(See page EF-61} I I Throttle position sensor circuit
I
Check fuel pump operating sound.
I
1.
Fuel pump relay
(See page EF-76.)
1
No
2. Fuel pump
OK
3.
Wiring/connection
4.
Fusible links and/or fuses
5.
ECU
I
Check fuel pressure.
L
1.
Fuel pump
(See page EF-77.)
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 E;:_78.)
I
I
.2
Fuel filter
•
OK
I
Check injector operating sound.
I I
1.
Injector wiring(s) between ECU and injector
(See page EF-97.)
I
BAD
I 2. Injectors
OK
I
I Check injector fuel flow rate.
I
Injector Injection condition/leakage
(See page EF-99.)
OK
I
Check EFI electronic circuit, using volt/ohm meter.
I
1. Power to ECU
(See page EF-35.)
I
(1) Fusible link
(2) Fuse(s)
(3) Main relay
(4) Wiring
2.
Pressure sensor
•
3. Water temperature sensor
4.
Intake air temperature sensor
5.
Throttle position sensor
6.
Oxygen sensor
7.
Vehicle speed sensor
8.
Injection signal circuit
EF-24